WATER-REPELLING/DUST-REPELLING AGENT, IONIC WAX-BASED EMULSION FOR WATER-REPELLING/DUST-REPELLING AGENT, PRODUCTION METHOD FOR WATER-REPELLING/DUST-REPELLING AGENT, AND METHOD FOR PREVENTING DUST EMISSION AND MOISTURE INCREASE IN OPEN-AIR PILE OF DEPOSITS
The water-repelling/dust-repelling agent according to the present invention comprises: an ionic wax-based emulsion containing a wax component, which is a water-repelling component, and being obtained by emulsifying the wax component using an ionic emulsifier; and a resin emulsion containing a dust-repelling component and having the property of being able to be emulsified with the ionic wax-based emulsion.
C09K 3/22 - Substances non couvertes ailleurs pour abattre la poussière ou pour l'absorber
B01J 13/00 - Chimie des colloïdes, p.ex. production de substances colloïdales ou de leurs solutions, non prévue ailleurs; Fabrication de microcapsules ou de microbilles
C09K 3/18 - Substances non couvertes ailleurs à appliquer sur des surfaces pour y minimiser l'adhérence de la glace, du brouillard ou de l'eau; Substances antigel ou provoquant le dégel pour application sur des surfaces
A primary water purification device 3 has a flow meter 41 downstream of an ultraviolet oxidation device 13, and has a control means that can control the amount of ultraviolet rays radiating from the ultraviolet oxidation device 13 on the basis of the value detected by the flow meter 41. The ultraviolet oxidation device 13 is composed of blocks of a plurality of ultraviolet lamps, and the amount of ultraviolet rays radiating from the ultraviolet oxidation device 13 can be controlled by controlling the number of blocks to be lit and adjusting the illuminance of ultraviolet lamps of each block by the control means. The amount of water to be treated is measured by the flow meter 41 downstream of the ultraviolet oxidation device 13, and the amount of ultraviolet rays radiating from the ultraviolet oxidation device 13 is controlled to be increased or decreased in accordance with the increase or decrease in the amount of water to be treated relative to a preset standard flow rate. According to this apparatus for producing pure water, it is possible to suppress the generation of hydrogen peroxide even when the amount of water to be treated fluctuates, in accordance with the amount of water used by the ultraviolet oxidation device etc.
NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Japon)
Inventeur(s)
Kawakatsu, Takahiro
Kumagai, Kazuo
Matsuyama, Hideto
Abrégé
This wastewater concentration device and method comprise: an osmotically assisted reverse osmosis device that has a primary chamber and a secondary chamber which are separated by an osmotically assisted reverse osmosis membrane and that performs an osmotically assisted reverse osmosis method; and a water supply means for supplying to-be-treated water to the primary chamber. The water supply means uses a cation exchange device or an anion exchange device to treat at least a portion of the to-be-treated water so that the pH of the to-be-treated water to be supplied to the osmotically assisted reverse osmosis device ranges from a first prescribed pH to a second prescribed pH (where the first prescribed pH is an alkaline pH, and the second prescribed pH is the pH of an acidic pH).
This method for separating and regenerating an anion exchange resin and a cation exchange resin in an ion exchange resin mixture according to the present invention involves usage of a three-column configuration including a separation column, a cation exchange resin regeneration column, and a seprex column. In a separation step performed in the separation column, the anion exchange resin and the cation exchange resin are separated. The separated anion exchange resin is transferred to the seprex column for separating and removing the cation exchange resin included therein by using a high-concentration aqueous NaOH solution having a specific gravity that is between those of the anion and cation exchange resins, and is also subjected to a regeneration treatment. In addition, the cation exchange resin separated in the separation step in the separation column is transferred to the cation exchange column in which a HCl solution is injected to regenerate the cation exchange resin. By such a method for separating and regenerating an anion exchange resin and a cation exchange resin in an ion exchange resin mixture, the anion exchange resin and the cation exchange resin can be precisely separated using a seprex method without an increase in initial cost.
This ordering assistance device comprises: a communication unit that receives, from one or more water treatment facilities comprising a plurality of chemical tanks, liquid level measurement data representing the remaining amount of liquid in each of the plurality of chemical tanks, which store a plurality of types of chemicals used for purifying water; a prediction unit that predicts the remaining amount of liquid at a plurality of time points within a prescribed period for each of the plurality of chemical tanks, on the basis of the received measurement data; an ordering plan creation unit that, on the basis of the prediction results for the remaining amounts of liquid at the plurality of time points within the prescribed period for each of the plurality of chemical tanks, creates an ordering plan that includes information about the ordering company for each of the plurality of types of chemical, the delivery date and time, and the delivery amount; and a provision unit that provides, to a request source, information about the ordering plan created by the ordering plan creation unit.
[Problem] To provide a method for operating waste liquid treatment equipment that can flexibly respond to variation in a property of the waste liquid. [Solution] One aspect of the present invention provides a method for operating waste liquid treamtent equipment that treats a waste liquid from a product manufacturing process. This operating method comprises a data acquisition step, a waste liquid predicted value output step, and an operating condition setting step. In the data acquisition step, first data including product manufacturing process data from a product manufacturing process during a first time period is acquired. In the waste liquid predicted value output step, a predicted value relating to a property of the waste liquid from the product manufacturing process during a second time period after the first time period is outputted on the basis of the first data and a prediction model that predicts the property of the waste liquid. This prediction model is a model that was created by associating past product manufacturing process data from the product manufacturing process, and data relating to the property of the waste liquid that was discharged at such time. In the operating condition setting step, an operating condition parameter of the waste liquid treatment equipment is set on the basis of the predicted value that relates to the property of the waste liquid and was outputted in the waste liquid predicted value output step.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
7.
METHOD FOR OPERATING REVERSE OSMOSIS MEMBRANE DEVICE
Provided is a method for operating a reverse osmosis membrane device which has a reverse osmosis membrane element and in which treated water is obtained by passing water to be treated that contains a scale component through the reverse osmosis membrane device, said method being characterized in that: the reverse membrane element includes a reverse osmosis membrane and a flow path member; a dense layer of the reverse osmosis membrane contains carbon nanotubes and cellulose nanofibers; the flow path member contains carbon nanotubes; and a scale dispersant is added to the water to be treated.
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 5/00 - Adoucissement de l'eau; Prévention de l'entartrage; Addition à l'eau d'agents antitartre ou détartrants, p.ex. addition d'agents séquestrants
C02F 5/08 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 5/14 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants en utilisant des substances organiques contenant du phosphore
8.
MONITORING SYSTEM, LEARNING DEVICE, MONITORING METHOD, LEARNING METHOD, AND PROGRAM
This monitoring system comprises: a determination unit that determines the internal state of a solid-liquid separation tank to be diagnosed from a supernatant water image representing the supernatant water inside the solid-liquid separation tank, using a first learning model that has learned the relationship between supernatant water images, which are images representing the supernatant water inside a solid-liquid separation tank for separating waste water into solid and liquid, and the internal state of the solid-liquid separation tank, on the basis of the supernatant water images and diagnostic results based on the supernatant water images; and an output unit that outputs information identifying the internal state of the solid-liquid separation tank to be diagnosed as determined by the determination unit using the supernatant water image of the solid-liquid separation tank and the first learning model.
This treatment method for used sanitary goods uses a treatment device that comprises: a rotary drum 4 which stores the used sanitary goods; a water tank 3 which houses the rotary drum therein; a water feeding pipe 10 through which water is fed into the water tank 3; and a passage 12 for discharging water from the water tank 3. The method involves: inputting, into the rotary drum 4, used sanitary goods and an individually packaged chemical having a chemical accommodated in a container; and rotating the rotary drum 4 to cause the container to break to let the chemical diffuse within the rotary drum.
A method for drying liquid-containing matter in the state of a slurry or paste comprising a liquid and particles, the method comprising: an adhesion step in which the liquid-containing matter is adhered to the planar portion of an object equipped with a planar portion; and a drying step in which the adherend matter is thereafter dried. The method may further include a drainage step in which the liquid-containing matter adhered to the planar portion is drained after the adhesion step. In the drying step, the drying is conducted by flowing an ordinary-temperature or heated gas along the surface of the liquid-containing matter adhered to the planar portion.
F26B 3/04 - Procédés de séchage d'un matériau solide ou d'objets impliquant l'utilisation de chaleur par convection, c. à d. la chaleur étant transférée d'une source de chaleur au matériau ou aux objets à sécher par un gaz ou par une vapeur, p.ex. l'air le gaz ou la vapeur circulant sur ou autour du matériau ou des objets à sécher
F26B 21/12 - Commande, p.ex. régulation des paramètres de l'alimentation en gaz du débit
F26B 25/00 - SÉCHAGE DE MATÉRIAUX SOLIDES OU D'OBJETS PAR ÉLIMINATION DU LIQUIDE QUI Y EST CONTENU - Parties constitutives d'application générale non couvertes par un des groupes ou
C02F 11/121 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique
C02F 11/13 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement par chauffage
11.
BAG BREAKING DEVICE AND BAG BREAKING PROCESSING METHOD
This bag breaking device for tearing a waste accommodating bag body uses a drum-type washing machine which has: a water tank 2 for storing washing water; a bottomed cylindrical rotary tub 3 which is rotatably supported inside the water tank 2 such that the rotation axis thereof is substantially horizontal and which accommodates laundry; and a motor 5 which rotates the rotary tub 3, wherein blades 12 for bag tearing re provided on the inner circumferential surface of the rotary tub 3. This method for processing a waste accommodation bag body uses the bag breaking device.
B02C 18/00 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue
B02C 18/14 - Désagrégation par couteaux ou autres organes coupants ou déchirants qui transforment le matériau en fragments; Hachoirs ou appareils similaires utilisant des vis ou analogue à couteaux rotatifs à l'intérieur de récipients horizontaux
This method for determining an aggregation state includes irradiating a particle-containing liquid with laser light and then determining the aggregation state of the particles on the basis of the reception intensity of scattered light that is derived when the laser light is scattered by the particles, the method having: a calculation step for creating a correlating equation between the total reception intensity S calculated from the reception intensity and an actual measured value of a fluctuation index representing fluctuation in the reception intensity and then calculating a compensation coefficient C that is based on the correlating equation; and a determination step for determining the aggregation state of the particles by using a compensation value that is derived by compensating the actual measured value of the fluctuation index with the compensation coefficient.
Provided is an aggregation state determination method in which a liquid containing particles is irradiated with a laser beam and the aggregation state of the particles is determined on the basis of the light reception intensity of scattered light that results from the laser beam being scattered by the particles, wherein the aggregation state of the particles is determined on the basis of the value of a change index that indicates a change in the light reception intensity.
This method for determining a state of aggregation is for irradiating a liquid containing particles with laser light and determining the state of aggregation of the particles on the basis of a received-light intensity change width of scattered light resulting from scattering of the laser light due to the particles, and comprises: a correlation-obtaining step for obtaining a correlation between the particle size of the particles and the received-light intensity change width; and a determination step for determining the state of aggregation of the particles on the basis of the correlation.
Provided is a control method for an RO system that, by reducing the usage amount of chemicals and the frequency of membrane replacement, is capable of reducing power consumption (that is, CO2) and the amount of waste and achieving stable operation, thereby contributing to energy saving and labor saving due to reduced maintenance. This control method for an RO system is a method for controlling an RO system having a plurality of RO devices 41-44 arranged in parallel, a control unit that controls start/stop processes including an operation process and a stop process of the RO devices 41-44, and a chemical injection unit that injects chemicals to alleviate fouling during the stop process. The control method performs control such that the start/stop frequency becomes higher for RO devices having a processing capability easily recovered by starting/stopping, and controls the stop time depending on the degree of recovery.
A subsystem 4 of this ultrapure water production apparatus has: a first TOC meter 41 for measuring the TOC concentration on an inlet side of a first ultraviolet oxidation device 24; a hydrogen peroxide meter 42 for measuring the hydrogen peroxide concentration in water treated in a platinum group metal catalyst resin column 25; a dissolved oxygen (DO) meter 43 for measuring the dissolved oxygen concentration in water treated in a membrane-type deaeration device 26; and a second TOC meter 44 for measuring the TOC concentration in water treated in a non-regeneration type mixed bed ion exchange device 28. The first TOC meter 41 can send measurement data to a control means 45, and the control means 45 can control the first ultraviolet oxidation device 24 on the basis of the sent data. The first ultraviolet oxidation device 24 is composed of three blocks with two ultraviolet lamps per block, wherein the illumination level of the ultraviolet lamps can be adjusted within the range of 30%-100% for each block. Such an ultrapure water production apparatus can suppress excess ultraviolet irradiation in the ultraviolet oxidation device and can stably produce ultrapure water with a low TOC concentration.
A depolymerizable copolymer according to the present invention is obtained through copolymerization of two or three or more monomers that make up a depolymerizable homopolymer which decomposes into the monomers via heat, light, and the like. The depolymerizable homopolymer decomposes into the monomers via heat, light, and the like, and has an extremely high monomer recovery rate of 90% or greater; examples of the same include polymethyl methacrylate, poly α-methyl styrene, and polytetrafluoroethylene. The monomers that make up these homopolymers are methyl methacrylate (MMA), α-methyl styrene (AMS), and tetrafluoroethylene (TFE). Such copolymers have a depolymerization property wherein the polymers decompose into the monomers via heat and light, and reuse thereof is easy.
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
18.
METHOD FOR SUPPRESSING DECOMPOSITION OF ISOTHIAZOLINE COMPOUND IN AQUEOUS SYSTEM
Provided is a method for suppressing the decomposition of an isothiazoline compound in an aqueous system, the method being characterized by adding a nitrous acid compound to the aqueous system such that a nitrous acid ion concentration is at least 5 mg/L. By adding a highly safe nitrous acid compound at a low concentration, it is possible to effectively suppress the decomposition of an isothiazoline compound at a low cost.
A01N 43/80 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, contenant des composés hétérocycliques comportant des cycles avec des atomes d'azote et des atomes d'oxygène ou de soufre, comme hétéro-atomes du cycle des cycles à cinq chaînons avec un atome d'azote et soit un atome d'oxygène, soit un atome de soufre, en positions 1,2
A01N 25/02 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'application; Substances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles contenant des liquides comme supports, diluants ou solvants
A01N 25/22 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'application; Substances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles contenant des ingrédients stabilisant les ingrédients actifs
A method for recovering oil from an oil-containing waste liquid which has an extraction step for transferring the oil in an oil-containing waste liquid to a solvent by subjecting said oil-containing waste liquid to an extraction treatment by using said solvent, a separation step for separating said waste liquid and the solvent, which contains the extracted oil, and an oil recovery step for separating and recovering the oil from the separated oil-containing solvent, said method being characterized in that the solvent from which the oil is separated during said oil recovery step is reused in the extraction step.
The present invention provides a treatment method for fluorine- and aluminum-containing water, wherein a chelating agent is added to the fluorine- and aluminum-containing water at a concentration that, by weight, is not less than 100 times the aluminum concentration in the fluorine- and aluminum-containing water, and then water is passed through a reverse osmosis membrane device. The pH of the fluorine- and aluminum-containing water is preferably 4 to 6. The chelating agent is preferably EDTA. The F ion concentration in the water to be treated is preferably 50-700 mg/L, and the Al ion concentration therein is preferably 0.01-1 mg/L.
A method for recovering vapor condensation in vapor generation equipment that recovers drainage, the method including measuring the turbidity of the drainage, and adding a scale remover to water being supplied to the vapor generation equipment on the basis of the turbidity. The method for recovering vapor condensation includes: establishing an approximation formula that expresses a positive correlation between the turbidity of the drainage and the concentration of at least one metal from among iron, copper, and zinc in the drainage; establishing the concentration of the metal in the drainage using the turbidity measurement value and the approximation formula; and adding a scale remover to the water being supplied to the vapor generation equipment on the basis of the concentration of the metal.
F22B 37/38 - Détermination ou signalisation des conditions de marche dans les chaudières à vapeur, p.ex. enregistrant la direction ou le débit du courant d'eau dans les tubes
F22B 37/56 - Dispositifs de commande du nettoyage des chaudières, p.ex. pour assurer une durée convenable de la purge de la chaudière
F22D 11/00 - Alimentation en eau non prévue dans les autres groupes principaux
22.
METHOD FOR IMPROVING HEAT-TRANSFER EFFICIENCY OF HEAT EXCHANGER
A method for improving heat-transfer efficiency of a heat exchanger by forming a water-repellent film on the surface of the heat exchanger, said method being characterized in that the water-repellent film is formed by bringing the heat exchanger into contact with a liquid comprising an acid and a water-repellent-film-forming substance. A method for improving heat-transfer efficiency of a heat exchanger by forming a water-repellent film on the surface of the heat exchanger, said method being characterized in that the water-repellent film is formed by bringing the heat exchanger into contact with a liquid containing an acidic water-repellent-film-forming substance.
F28F 13/18 - Dispositions pour modifier le transfert de chaleur, p.ex. accroissement, diminution par application d'un traitement de surface, p.ex. un polissage
C23C 26/00 - Revêtements non prévus par les groupes
23.
METHOD FOR EVALUATING EFFECT OF IMPROVING HEATING EFFICIENCY OF DRUM DRYER, AND METHOD FOR IMPROVING OPERATIONAL EFFICIENCY
This method for evaluating effect of improving heating efficiency of drum dryer is characterised in that in a heating step for heating an object to be heated, which is in contact with an outer peripheral surface of a drum, by supplying steam into the drum that is rotating, the degree of improvement as a result of performing improvement processing for improving the heating efficiency with the steam is evaluated on the basis of a rotation drive current value of the drum or a power value thereof.
The present invention is a method for operating an exhaust gas treatment facility for treating exhaust gas from an electronic component production process, the method being characterized in that the exhaust gas treatment facility has an exhaust gas wet treatment device provided with a water-sprinkling means, and the pH of the water in the exhaust gas wet treatment device is brought to 5 to 8. The exhaust gas optionally contains a tungsten compound.
Provided is a solid drug accommodation body in which tablets T of water-soluble solid drugs are stacked in an accommodation space 13 of a storage container 10 having an accommodation space 13 capable of accommodating a plurality of water-soluble solid drugs, an inlet for allowing water to flow into the accommodation space 13, and an outlet for allowing water to flow out of the accommodation space 13, wherein water-insoluble films F are interposed between the layers of the tablets T.
Provided is an underwater bubble detecting method, and a degassing agent adding method employing the same, capable of accurately and easily detecting bubbles in water containing a fibrous material and bubbles, even if the water is inside a water feed pipe. In this underwater bubble detecting method, bubbles in water containing a fibrous material and bubbles are detected by measuring the intensity of ultrasonic waves received by a receiving unit of a transmission type ultrasonic sensor.
This water treatment facility comprises: a first membrane filtration device; a second membrane filtration device provided at a stage subsequent to the first membrane filtration device; a reservoir tank that retains a portion of permeated water that has permeated through the first membrane filtration device; a circulation flow path that is provided between the first membrane filtration device and the reservoir tank, and enables the permeated water retained in the reservoir tank to circulate between the first membrane filtration device and the reservoir tank; a pump that is provided in the circulation flow path; and a control unit that controls the pump such that after the end of washing of a filtration membrane accompanied by introduction of air into the first membrane filtration device, the permeated water retained in the reservoir tank is circulated between the first membrane filtration device and the reservoir tank through the circulation flow path.
A power storage device structure according to the present invention is composed of a power storage device and a casing that encloses the power storage device with a gap therebetween. The power storage device structure is configured such that a shaped body containing a thermally depolymerizable polymer is arranged in the gap between the power storage device and the casing. It is preferable that the shaped body has a film shape, a sheet shape or a plate shape. With this power storage device structure, it is possible to reduce the risk of ignition occurring at the time of abnormality such as damage to or overcharging of a power storage device, and in particular, of a power storage device stack in which a plurality of power storage devices have been stacked.
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01G 11/06 - Condensateurs hybrides avec une des électrodes permettant de doper les ions de façon réversible, p.ex. condensateurs lithium-ion
H01G 11/14 - Agencements ou procédés de réglage ou de protection des condensateurs hybrides ou EDL
H01G 11/16 - Agencements ou procédés de réglage ou de protection des condensateurs hybrides ou EDL contre les surcharges électriques, p.ex. comprenant des fusibles
H01G 11/18 - Agencements ou procédés de réglage ou de protection des condensateurs hybrides ou EDL contre les surcharges thermiques, p.ex. chauffage, réfrigération ou ventilation
H01M 50/291 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par leur forme
H01M 50/293 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs caractérisés par le matériau
29.
METHOD FOR IMPROVING PRODUCTIVITY OF PRODUCTION PROCESS INCLUDING HEAT EXCHANGE STEP
In this method for improving the productivity of a production process that includes a heat exchange step including a heat exchanger in which vapor is employed as a heat source fluid, the productivity of the production process is improved by adding a dropwise condensation accelerator to feed water for a boiler that generates the vapor or to the vapor, wherein a degree of reduction in a heating-up time of the heat exchanger due to the addition of the dropwise condensation accelerator is measured, and the overall production process is adjusted.
[Problem] To provide an estimation device, an estimation system, an estimation program, and an estimation method that can estimate pitch production from water quality information which can easily be measured during work. [Solution] One aspect of the present invention provides an estimation device for estimating the degree of pitch production in a water system, or the degree of hindrance due to pitch. This estimation device comprises a turbidity information acquisition unit, a relationship model information acquisition unit, and an estimation unit. The turbidity information acquisition unit acquires turbidity information including the turbidity of the water system. The relationship model information acquisition unit acquires relationship model information which was generated in advance and which indicates the relationship between the degree of pitch production or the degree of hindrance due to pitch, and turbidity. The estimation unit estimates the degree of pitch production or the degree of hindrance due to pitch, on the basis of the turbidity information and the relationship model information.
In an electrodeionization device 10, a concentration compartment 15 and a desalting compartment 16 are defined by ion exchange films 13, 14 between a positive electrode 11 and a negative electrode 12; concentrated water is caused to flow into the concentration compartment; water being treated is caused to flow into the desalting compartment 16 and is extracted as deionized water; and part of the deionized water is caused to flow as concentrated water into the concentration compartment 15 in a direction opposite the flow direction of the desalting compartment 16. Water supplied to the electrodeionization device 10 is treated using a water softener 1, an RO device 2, and a membrane degassing device 3, and the total concentration of Ca ions and Mg ions is 50 μg/L or lower.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
C02F 1/42 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par échange d'ions
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
A vessel 1 for a reverse osmosis membrane module comprises a cylindrical lower member 2A and upper member 2B. Markings 3A, 3B for positioning are respectively provided to opening end parts of the lower member 2A and the upper member 2B. The lower member 2A and the upper member 2B are connected with a ferrule structure as a high pressure connection structure, with use of a clamp 4, and with an O ring 5 interposed between the joining surfaces of the lower member 2A and the upper member 2B. A water supply member 6 to which a water supply pipe connects is connected to a side part at the lower end of the lower member 2A. A treated water outlet member 7 is connected to a lower part at the lower end of the lower member 2A. A discharge member 8 to which brine piping connects is connected to the top part of the upper member 2B. A reverse osmosis membrane module 9 is housed in the vessel 1. Such a vessel for a reverse osmosis membrane module makes it possible to easily perform an operation for replacing the reverse osmosis membrane module.
This electric component cleaning method for cleaning the surface of a wafer includes: wet cleaning steps (S102-S104) for performing wet cleaning of the surface of the wafer using hydrogen water and pure water; a dry cleaning step (S109), after the wet cleaning steps, for performing dry cleaning of the surface of an electronic component using an atmospheric-pressure plasma; and a hydrogen water processing step (S113), after the dry cleaning step, for cleaning the surface of the wafer using hydrogen water obtained by dissolving hydrogen gas in water.
This exhaust gas treatment facility comprises: a combustion chamber 1 for combusting wastewater; a nozzle for causing water to flow along the inner wall surface of the combustion chamber 1; a water supply line for supplying water to the nozzle; a primary smoke washing chamber 11; and a scrubber 20. When solids of the scrubber 20 are removed, an aqueous alkaline detergent solution is injected from a chemical injection device 50 into a lower water tank 44 to set the pH value to 8-14. The inside of the scrubber 20 is cleaned by operating a circulation pump 23 and sprinkling water from the nozzle 21. The cleaning solution having a pH of 8 to 14 may be sprinkled from above a mist catcher 40.
B01D 53/78 - Procédés en phase liquide avec un contact gaz-liquide
F23G 7/06 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques de gaz d'évacuation ou de gaz nocifs, p.ex. de gaz d'échappement
F23J 15/04 - Aménagement des dispositifs de traitement de fumées ou de vapeurs des purificateurs, p.ex. pour enlever les matériaux nocifs utilisant des fluides de lavage
35.
CLEANING METHOD FOR EXHAUST GAS TREATMENT FACILITY
This exhaust gas treatment facility comprises a combustion chamber 1 for applying combustion treatment to wastewater, a nozzle for causing water to flow along the inner wall surface of the combustion chamber 1, a water supply line for supplying water to the nozzle, a primary wet scrubbing chamber 11, and a scrubber 20, etc. When removing a solid matter from the scrubber 20, an alkaline-based cleaning agent solution is injected to a bottom water tank 44 from a chemical dispensing device 50, and a circulation pump 23 is actuated to spray water from a nozzle 21. Cleaning is finished if the detected pH by pH meters 52, 53 maintains a defined pH for at least a prescribed time.
B01D 53/78 - Procédés en phase liquide avec un contact gaz-liquide
F23G 7/06 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques de gaz d'évacuation ou de gaz nocifs, p.ex. de gaz d'échappement
F23J 15/04 - Aménagement des dispositifs de traitement de fumées ou de vapeurs des purificateurs, p.ex. pour enlever les matériaux nocifs utilisant des fluides de lavage
B08B 3/02 - Nettoyage par la force de jets ou de pulvérisations
B08B 3/08 - Nettoyage impliquant le contact avec un liquide le liquide ayant un effet chimique ou dissolvant
36.
METHOD FOR OPERATING ANAEROBIC TREATMENT APPARATUS
The present invention provides a method for operating an anaerobic treatment apparatus which introduces a starting waste liquid that is composed of an organic waste liquid into an anaerobic treatment tank, in which a carrier and granule are not present, and performs an organic matter treatment and a methane fermentation treatment. With respect to this method for operating an anaerobic treatment apparatus, if the ratio SS/CODcr of the concentration (mg/L) of suspended solids in the starting waste liquid to the CODcr concentration (mg/L) is 0.4 or less, aerobic sludge from an aerobic biological treatment step is continuously added to the starting waste liquid; and the aerobic sludge is added to the starting waste liquid in such an amount that the ratio SS/CODcr of the concentration of SS derived from the aerobic sludge in the aerobic sludge-added waste liquid, to which the aerobic sludge has been added, to the CODcr concentration in the starting waste liquid is 0.05 or more.
Provided is a method for operating an electric deionizer, in which concentration chambers and desalination chambers are defined between an anode and a cathode by an ion exchange membrane, concentrated water flows through the concentration chambers, raw water flows through the desalination chambers as water to be treated, and the treated water is extracted as product water, the method being characterized in that the water flows through all of the concentration chambers in the opposite direction of the water-flowing direction of the water to be treated in the desalination chambers.
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
38.
LAYOUT DESIGN ASSISTING DEVICE AND LAYOUT DESIGN ASSISTING METHOD
The present invention enables rapid and reliable selection of a combinational configuration of types of water treatment device. Provided is a layout design assisting device comprising at least a determination unit that, on the basis of a raw water condition which is a condition pertaining to raw water used by a water treatment facility, selects a combination configuration of types of water treatment device for performing a first process among water treatment processes performed by the water treatment facility. Also provided is a layout design assisting method including at least selecting, on the basis of a raw water condition which is a condition pertaining to raw water used by a water treatment facility, a combinational configuration of types of water treatment device for performing a first process among water treatment processes performed by the water treatment facility.
The purpose of the present invention is to enable the rapid and reliable selection of a configuration of the combination configuration of types of water treatment devices. Provided is a configuration selection assistance device which is provided with at least a selection unit for selecting a configuration of the combination of types of water treatment devices to be employed for performing a previous-stage process included in a water treatment process to be performed by a water treatment facility on the basis of raw water conditions that are conditions associated with raw water utilized by the water treatment facility. Also provided is a configuration selection assistance method which includes at least selecting a configuration of the combination of types of water treatment devices to be employed for performing a previous-stage process included in a water treatment process to be performed by a water treatment facility on the basis of raw water conditions that are conditions associated with raw water utilized by the water treatment facility.
A device configuration calculation system 1 for water treatment plants comprises: a construction project database 2 in which past project information on a plurality of constructed water treatment plants constructed in the past is recorded; and a calculation unit 3 accessible to the information in this construction project database 2. On the basis of a demand condition and a request condition that are provided from a client Cl, the calculation unit 3 performs rearrangement in accordance with sorting, selection, and similarity of the information in the construction project database 2, and provides this result as a device configuration calculation result. The device configuration calculation system 1 for these water treatment plants is configured to: input information of the client Cl via a mobile terminal 4 or the like; and be able to display the device configuration calculation result. The calculation unit 3 calculates a device configuration of a water treatment plant on the basis of the information in the construction project database 2. By the device configuration calculation system for water treatment plants, it is possible to present, in a short time, a device configuration of a water treatment plant intended for construction on the basis of various demand conditions.
This method operates a desalting device having a first desalting device and a second desalting device, the method involving: a normal operation step for supplying water to be treated to the first desalting device, separating the water to be treated into first concentrated water and first desalted water, supplying the first concentrated water to the second desalting device, and separating the first concentrated water into second concentrated water and second desalted water; and a dilute water passing operation step for passing dilute water having a concentration lower than the first concentrated water through the second desalting device before a corrected permeated water amount of the second desalting device decreases.
The disclosure provides a silica-based scale cleaning technology. The disclosure can provide a cleaning agent of a silica-based scale, containing a silicic acid compound. The disclosure can also provide a cleaning method of a water treatment apparatus, including: using a solution containing a silicic acid compound. Further, the disclosure can provide a cleaning method of a silica-based scale, including: using an agent containing a silicic acid compound for a water system.
C02F 5/12 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants en utilisant des substances organiques contenant de l'azote
C02F 5/08 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants
C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter
C02F 103/08 - Eau de mer, p.ex. pour le dessalement
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p.ex. par addition d'oligo-éléments
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisation; Ajustage du pH
In this water treatment device and water treatment method, the chlorine demand of raw water W is measured using a chlorine demand meter 9, and sodium hypochlorite corresponding to the chlorine demand is added from a sodium hypochlorite addition means 3. Additionally, the concentration of urea in the raw water W is measured using a urea meter 8, and, on the basis of the urea concentration, additional sodium hypochlorite is added from the sodium hypochlorite addition means 3 and sodium bromide is added from a sodium bromide addition means 4. According to the present invention, it is possible to provide a water treatment method and water treatment device in which a chemical agent required for dissolution of urea is added without excess or insufficiency, even if there is fluctuation in components consuming hypochlorites within the water being treated, and in which urea is stably and reliably removed.
Provided is a power transmission end thermal efficiency prediction method that is achievable at a power generation plant and that derives, by a calculation of a thermal balance among various equipment items ranging from a power generation plant's fuel to a power transmission end thereof, a combination of auxiliary machinery output conditions such as a fan output, a circulating pump output and the like of a cooling tower, so as to improve power transmission end thermal efficiency. In this power transmission end thermal efficiency prediction method that is achievable at a power generation plant comprising primary machinery including a generator and the like and auxiliary machinery including a cooling tower and the like, conditions at which the power transmission end thermal efficiency will be maximum are computed on the basis of: a steam generation amount or a fuel usage amount of a boiler; and a thermal balance calculation required to set the operating conditions of the auxiliary machinery.
Provided are an anaerobic treatment method and an anaerobic treatment apparatus, each of which is configured such that organic wastewater is subjected to a methane fermentation treatment in an anaerobic reaction vessel 1 and sludge in the anaerobic reaction vessel 1 is subjected to membrane filtration through a membrane module 4 to produce treated water, in which the membrane is subjected to alkaline washing when a converted flux decreases and reaches a predetermined value when a transmembrane pressure difference during the membrane filtration increases and reaches a predetermined value, and the membrane is subjected to acid washing when a rate of increase in a logarithmic value of the transmembrane pressure difference or a rate of decrease in a logarithmic value of the converted flux reaches a predetermined value.
An ultrapure water production apparatus of the present invention comprises a pretreatment device, a primary pure water system, and a subsystem. Water recovery equipment for recovering various kinds of waste water is connected to the upstream end of the primary pure water system 3. A supply pipe communicating with a pretreated-water tank is branched into a first pipeline communicating with the pretreated-water tank and a second pipeline communicating with a component other than the ultrapure water production apparatus, and is switchable. A water quality prediction means 73 that collects a small amount of recovered water W5 recovered by the water recovery equipment is connected before the branch point of the first pipeline and the second pipeline. The water quality prediction means 73 simulates the primary pure water system, and has a small reverse osmosis membrane device 82, a small ultraviolet oxidation device 83, and a small ion exchange device 84, respectively, and is provided with a water quality measurement means 85 at the end. As a result, it is possible to promote water recovery in the ultrapure water production apparatus.
A pure water production apparatus according to the present invention has a reverse osmosis membrane device, an ultraviolet oxidation device, an electrical deionization device 8, and a water-supplying pump for supplying water to the electrical deionization device 8. In the pure water production apparatus, water W4 being treated obtained through treatment by the ultraviolet oxidation device is caused to flow in a desalination chamber 25 of the electrical deionization device 8 to produce desalination water W5. Here, the desalination water W5 is taken separately and is supplied in a direction opposite to a water flowing direction in the desalination chamber 25 as supply water (electrode water) for a concentration chamber 26 and electrode chambers (anode chamber 27, cathode chamber 28) of the electric deionization device 8. Here, the flow rate of the water W4 being treated to the desalination chamber 25 is controlled so as to be reduced to not less than 50% but less than 100% when the conductivity of treated water of the reverse osmosis membrane device 5 becomes 0.3 mS/m or more. Accordingly, it is possible to provide: a pure water production apparatus that has a reverse osmosis membrane device and an electrical deionization device, and that can produce pure water with a stable water quality even when fluctuation occurs in the quality of treated water of the reverse osmosis membrane device in the pure water production apparatus which is configured to supply treated water at a high pH to the reverse osmosis membrane device; and an operation method for the pure water production apparatus.
C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
C02F 9/00 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout
48.
MICROORGANISM CONTAMINATION PREVENTION METHOD FOR WATER SYSTEM
A method for preventing microorganism contamination in a water system containing a reducing agent, said microorganism contamination prevention method for a water system being characterized by adding a stabilized chlorine-based oxidizing agent composed of a chlorine-based oxidizing agent and a sulfamic acid compound, with the ratio of the sulfamic acid compound relative to 1 mol effective chlorine of the chlorine-based oxidizing agent being 1-1.5 mol, and/or a stabilized bromine-based oxidizing agent composed of a bromine-based oxidizing agent and a sulfamic acid compound, with the ratio of the sulfamic acid compound relative to 1 mol effective chlorine conversion amount of the bromine-based oxidizing agent being 1-1.5 mol, to the water system, such that the addition concentration of the stabilized chlorine-based oxidizing agent and/or the stabilized bromine-based oxidizing agent relative to the reducing agent concentration in the water system is 2.5 times or more by molar ratio.
Provided is a method for suppressing microorganism contamination in a water system that contains a reducing agent, the method being characterized in that a stabilized chlorine-based oxidizing agent comprising a chlorine-based oxidizing agent and a sulfamic acid compound, and/or a stabilized bromine-based oxidizing agent comprising a bromine-based oxidizing agent and a sulfamic acid compound is intermittently added to the water system so that the ratio of the time when the stabilized chlorine-based oxidizing agent and/or stabilized bromine-based oxidizing agent is not being added relative to the time when the same is being added of is 0.1 or more.
In a separator column 1 for mixed ion exchange resins, a cylindrical separator column body 1A has a bottom part having a water supply pipe 2 and a plurality of ejection nozzles 2A as a water injection unit, and a top part to which a discharge pipe 3 is connected as a discharge unit. A water collecting plate 4 is disposed above the ejection nozzles 2A of the separator column body 1A, and a screen 5 is disposed on the upper end side of the separator column body 1A. The screen 5 has a mesh of 90% or less of an average grain size of an ion exchange resin having the smallest average grain size among mixed ion exchange resins. Such separator column for ion exchange resins allows for accurate separation of ion exchange resins of a mixed-bed ion exchange device or the like.
The purpose of the present invention is to provide a device that can quantify a high concentration of residual chlorine. The present invention provides a water quality measurement device comprising a dilution device that prepares sample water including raw water and dilution water, and a residual chlorine concentration measurement device that measures a residual chlorine concentration of the sample water, wherein the dilution device includes: a container in which the sample water is accommodated; a first liquid level detection unit that detects a first liquid level inside the container; a second liquid level detection unit that detects a second liquid level inside the container; a raw water injection unit that injects the raw water into the container until the first liquid level detection unit detects the first liquid level; and a dilution water injection unit that dilutes the raw water by injecting the dilution water into the container until the second liquid level detection unit detects the second liquid level.
This silica contamination inhibition method for a reverse osmosis membrane system is characterized by causing an acrylic acid-based polymer and/or a maleic acid-based polymer, and a bound chlorine-based oxidizer and/or a bound bromine-based oxidizer to exist in a water to be treated. This silica contamination inhibitor for a reverse osmosis membrane system contains: a copolymer of acrylic acid and 2-acrylamide-2-methylpropanesulfonic acid and/or a terpolymer of acrylic acid, acrylamide methylpropanesulfonic acid, and N-substituted acrylamide; and a bound chlorine-based oxidizer and/or a bound bromine-based oxidizer.
B01D 61/04 - Prétraitement du courant d'alimentation
B01D 65/08 - Prévention de l'encrassement de la membrane ou de la polarisation par concentration
C02F 5/00 - Adoucissement de l'eau; Prévention de l'entartrage; Addition à l'eau d'agents antitartre ou détartrants, p.ex. addition d'agents séquestrants
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 5/12 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p.ex. par addition d'agents séquestrants en utilisant des substances organiques contenant de l'azote
The present invention reduces an introduction cost and an operation cost of a water treatment plant. Provided is a water treatment information system comprising: a control unit which controls the driving of a water treatment device; and a monitoring unit which monitors measurement information obtained by measuring water and/or energy treated by driving the water treatment device, wherein the control unit and the monitoring unit are respectively provided in different devices. The monitoring unit may include an extraction unit which extracts problems pertaining to the water treatment device on the basis of the trend of values included in the measurement information.
Provided is a material for removing impurities in an organic solvent having a water content of 1,000 ppm or less, the material comprising a porous ion exchange resin. It is preferred that the porous ion exchange resin has, as an ion exchange group, at least one functional group selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group and a quaternary ammonium group. Also provided is a method for removing impurities in an organic solvent, the method comprising bringing the material for removing impurities in an organic solvent into contact with an organic solvent having a water content of 1,000 ppm or less.
B01J 39/05 - Procédés utilisant des échangeurs organiques sous forme fortement acide
B01J 39/07 - Procédés utilisant des échangeurs organiques sous forme faiblement acide
B01J 39/20 - Composés macromoléculaires obtenus par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
B01J 41/05 - Procédés utilisant des échangeurs organiques sous forme fortement basique
B01J 41/07 - Procédés utilisant des échangeurs organiques sous forme faiblement basique
B01J 41/14 - Composés macromoléculaires obtenus par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
B01J 47/014 - Procédés d'échange d'ions en général; Appareillage à cet effet dans lesquels les propriétés d’adsorption de l’échangeur d’ions sont utilisées, p.ex. récupération de protéines ou de composés macromoléculaires
55.
IMPURITY REMOVAL MATERIAL FOR ORGANIC SOLVENTS AND IMPURITY REMOVAL METHOD FOR ORGANIC SOLVENTS
According to the present invention, an impurity removal material for organic solvents is a removal material for removing impurities from organic solvents and comprises a polymer material that has a main skeleton that is a skeleton derived from a non-aromatic compound. The polymer material preferably includes, as a charged group, at least one functional group selected from the group that consists of primary amino groups, secondary amino groups, tertiary amino groups, quaternary ammonium groups, and carboxyl groups. According to the present invention, an impurity removal method for organic solvents involves bringing the impurity removal material for organic solvents into contact with an organic solvent.
B01J 39/05 - Procédés utilisant des échangeurs organiques sous forme fortement acide
B01J 39/07 - Procédés utilisant des échangeurs organiques sous forme faiblement acide
B01J 39/20 - Composés macromoléculaires obtenus par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
B01J 41/05 - Procédés utilisant des échangeurs organiques sous forme fortement basique
B01J 41/07 - Procédés utilisant des échangeurs organiques sous forme faiblement basique
B01J 41/14 - Composés macromoléculaires obtenus par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
B01J 47/014 - Procédés d'échange d'ions en général; Appareillage à cet effet dans lesquels les propriétés d’adsorption de l’échangeur d’ions sont utilisées, p.ex. récupération de protéines ou de composés macromoléculaires
Ultrapure water from a subsystem 4 is fed to a use point 14, via a first heat exchanger 6, a second heat exchanger 10, and a UF membrane separation device 12. The ultrapure water returned from the use point 14 is introduced into a storage tank 16 through a pipe 7. In response to fluctuation of the flowrate of the returned ultrapure water, heated primary pure water is introduced into the storage tank 16 through a pipe 22, and warm water at a prescribed temperature is stored in the storage tank 16 so as to attain a prescribed water level. The warm water in the storage tank 16 is supplied at a fixed flowrate through a heat source fluid path of the first heat exchanger 6.
According to the present invention, a transistor type sensor having an extension gate into which a phenylboronic acid compound is introduced as a receptor is used, and water to be measured is brought into contact with the extension gate so as to measure the hydrogen peroxide concentration in the water to be measured. The transistor type sensor comprises a transistor part that is composed of a field effect transistor and a detection part that is spaced apart from the transistor part; the detection part comprises a metal film and the above-described phenylboronic acid compound, which is bonded to the surface of the metal film; the metal film and a gate electrode of the field effect transistor are electrically connected to each other by means of a wiring line; and water to be measured is brought into contact with a surface of the metal film, the surface having the phenylboronic acid compound.
The present invention measures the concentration of a sarcosine compound in water to be measured by using a transistor-type sensor having an extension gate with a dipicolylamine-copper(II) complex introduced as a receptor and causing the water to be measured to contact the extension gate. The transistor-type sensor comprises a transistor site formed from a field effect transistor, and a detection site isolated from the transistor site. The detection site has a metal film and the dipicolylamine-copper (II) complex, which is bonded to a surface of the metal film. The metal film and a gate electrode of the field effect transistor are electrically connected by wiring. The water to be measured is caused to contact the surface, of the metal film, having the dipicolylamine-copper (II) complex.
In this invention, raw water is introduced into a reaction tank 2 to be mixed with slaked lime added return sludge from a reforming tank 8, and then in a flocculation tank 3, flocculation treatment is carried out by addition of polymer flocculant. A flocculation treatment liquid is introduced into a sedimentation tank 4 and the sludge is separated. A part of the sludge is introduced into the reforming tank 8 by a sludge return line 7. A sludge retention time in the reforming tank 8 is set to 1 to 5 minutes. The reforming tank 8 is disposed above the reaction tank 2, and a sludge outflow pipe 23 connected to a sludge outlet 21 of the reforming tank 8 is extended vertically downward.
The present invention provides a method for regenerating a used carbonate-type Mg-Al-based layered double hydroxide in which at least some interlayer carbonate ions of the carbonate-type Mg-Al-based layered double hydroxide have been replaced with other anions. The used carbonate-type Mg-Al-based layered double hydroxide is brought into contact with a carbon-dioxide-containing gas that contains carbon dioxide in the presence of an alkali.
B01D 53/82 - Procédés en phase solide avec des réactifs à l'état stationnaire
B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
Raw water is introduced into a reaction tank 2 and mixed with slaked lime-added return sludge from a reforming tank 8, after which a polymer flocculant is added in a flocculation tank 3 and a flocculation treatment is carried out. A flocculant treatment solution is introduced into a sedimentation tank 4 to separate the sludge. Part of the sludge is introduced into the reforming tank 8 through a sludge return line 7. A target flow rate for the return sludge is set on the basis of the flow rate a of the raw water, the concentration b of the return sludge, the suspended solids concentration c produced in the raw water by the addition of an alkaline agent, and a constant R, and the sludge return feed rate is controlled so as to reach this target flow rate.
A pure-water production apparatus 1 comprises a retention tank 2 for retaining water W0 being treated, and water-flow piping 3 connected to the retention tank 2, the water-flow piping 3 being provided, in the following order, a liquid-sending pump 4, a second reverse osmosis membrane 5 for which the permeation flux per 1 MPa of effective pressure is 0.8 m3/(m2⋅day) or greater, a first reverse osmosis membrane 6 for which the permeation flux per 1 MPa of effective pressure is 2.0 m3/(m2⋅day) or greater, and an ion exchange device 7. An NaOH aqueous solution addition means 8 is connected at a stage preceding the first reverse osmosis membrane 6, it being possible for the amount of NaOH aqueous solution added to be controlled by a control mechanism in accordance with the flow rate of the water-flow piping 3 and the pH of the water W0 being treated, such that water being treated by the first reverse osmosis membrane 6 reaches a prescribed pH. A multi-stage reverse osmosis membrane treatment system is composed of the second reverse osmosis membrane 5, the first reverse osmosis membrane 6, and the NaOH aqueous solution addition means 8. Using such a multi-stage reverse osmosis membrane treatment system makes it possible to obtain treated water having a prescribed level of quality while reducing the energy needed for operation.
A transport container for power storage devices according to the present invention has a structure in which an acrylic polymer molded body, into which an extinguishing agent is sealed, is arranged in a space between a power storage device and the transport container. It is preferable that the molded body is in the shape of a film, sheet, or plate. This transport container for power storage devices is capable of reducing the risk of catching fire when a power storage device or a power storage device stack, in which a plurality of power storage devices are stacked, is damaged or in an abnormal state such as a high-temperature environment.
H01M 50/256 - Dispositifs de transport, p.ex. courroies
A62C 3/16 - Prévention, limitation ou extinction des incendies spécialement adaptées pour des objets ou des endroits particuliers dans les installations électriques, p.ex. chemins de câbles
The present invention addresses the problem of providing a technique for a metal corrosion protection treatment for a water system, whereby it becomes possible to achieve a satisfactory anticorrosive effect without using a phosphorus compound, which is a causative substance for eutrophication, as a metal anticorrosive agent and it also becomes possible to achieve a satisfactory anticorrosive effect in high-hardness water as well as low-hardness water. The present invention can provide: a metal corrosion protection treatment method for a water system, in which a component (A) and a component (B) as mentioned below are allowed to be present at a usage ratio of 1:9 to 7:3 by mass in the water system; and (A) a copolymer of a (meth)acrylic acid monomer and a sulfonic acid monomer, and (B) a maleic acid-based polymer in which the carboxyl group content is 11.5 mmol/g or more.
This power storage device transport container has a structure in which a compact containing an acrylic-based polymer is disposed in a gap between a power storage device and the transport container. This compact is preferably film-shaped, sheet-shaped, or plate-shaped. With such a power storage device transport container, it is possible to reduce the risk of ignition in the event of damage to a power storage device or a power storage device stack in which a plurality of power storage devices are stacked, or an abnormality such as a high-temperature environment.
Provided is a fine particle measurement method in which: the number of fine particles in a liquid is measured for each particle size classification; an approximation formula expressing a particle size distribution is obtained from measurement data; and the number of fine particles in a classification of a particle size smaller than that of the smallest particle size classification of the measured fine particles is predicted by substituting, in the approximation formula, the particle size value of the smaller particle size classification. The number of particle size classifications is preferably not less than three. The number of fine particles for each particle size classification is measured by a particle meter, and exponential approximation or power approximation is used in approximation analysis. Ultrapure water is suitable as the liquid.
In this method for measuring fine particles: a number of fine particles in a liquid is measured for each particle size category of the fine particles; an approximation formula representing a Rosin-Rammler distribution is obtained from the measured data; and a particle size value for a category smaller than the smallest particle size category of the measured fine particles is substituted into the approximation formula to predict the number of fine particles in said smaller particle size category. The number of particle size categories is preferably at least equal to three. Pure water is suitable as the liquid. A main component of the fine particles and the condition of a pure-water producing device can also be estimated from the slope of a straight line representing a Rosin-Rammler analysis result.
The present invention provides a cleaning agent, a cleaning liquid and a cleaning method, which are capable of effectively removing a contaminant that is not able to be sufficiently removed by conventional cleaning liquids in cases where aromatic polyamide reverse osmosis membranes used in water treatments are contaminated and the performances of the aromatic polyamide reverse osmosis membranes such as the permeation flux and the desalination rate are deteriorated. The present invention provides a cleaning agent for aromatic polyamide reverse osmosis membranes, the cleaning agent being composed of an aqueous solution which has a pH of 13 or more and contains a stabilized halogen, a chelating agent that contains one or more substances selected from among aliphatic carboxylic acids containing no amino group, phosphonic acid compounds containing no amino group, polyphosphoric acids and salts thereof, and an alkaline agent. According to the present invention, an aromatic polyamide reverse osmosis membrane is cleaned with use of a cleaning liquid that is composed of an aqueous solution of this cleaning agent. A chloramine compound which is obtained by mixing a compound having a primary amino group with hypochlorous acid and/or a hypochlorite is suitable for use as the stabilized halogen.
NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY (Japon)
Inventeur(s)
Hoshi , Shigeyuki
Katou , Toshimasa
Fukui , Takeo
Ohira , Shin-Ichi
Toda , Kei
Abrégé
Provided is a method which is for analyzing ionic components in pure water and in which sample ultrapure water is concentrated and analyzed by an analysis means, the method being characterized in that the sample ultrapure water is concentrated by means of an electrodialyzer. The electrodialyzer is a second electrodialyzer 20 in which sample ultrapure water is passed through a first generation chamber 27, high-purity nitric acid aqueous solution is passed through a second generation chamber 28, and concentrated water for analysis is extracted from the second generation chamber 28. The high-purity nitric acid aqueous solution passing through the second generation chamber 28 is generated by dialyzing a potassium nitrate aqueous solution with a first electrodialyzer 10.
Provided is a method for treating raw water for purified water production, the method being capable of sufficiently removing humus-like organic matters and reducing any undesirable influence on ion exchange resins even if no agent such as a flocculant or a pH adjuster is used or reduced amount thereof is used. The method for treating raw water for purified water production, in which raw water that contains humus-like organic matters is treated, is characterized in that the raw water containing humus-like organic matters is subjected to an ozone oxidation treatment, and then subjected to an ion exchange treatment. Preferably, after the ozone oxidation treatment, a reduction treatment is performed, followed by the ion exchange treatment. The preferred amount of ozone added is approximately 1-10 mg/L per 1 mg/L of TOC in the raw water.
[Problem] To implement water quality monitoring in a non-contact manner using captured images from a monitoring camera, and to detect water quality abnormalities accurately by suppressing the effects of a change of state of a monitoring target. [Solution] A water quality monitoring system according to an embodiment includes: a water quality abnormality detecting unit which uses an object detection model to recognize a water surface region from a captured image of a water quality monitoring target output from a monitoring camera, and determines a water quality abnormality based on a condition of the recognized water surface region; and a monitoring result output unit for outputting a monitoring result. As a result, water quality monitoring can be implemented in a non-contact manner, and water quality abnormalities can be detected accurately even if there is an effect due to a change of state (variation in water level, variation in angle of view of monitoring camera, variation in orientation of camera, etc.) of the monitoring target.
A device for supplying liquid for semiconductor manufacturing 1 according to the present invention has a supply pipe 2 communicating with a supply source of ultrapure water W, a conductivity modifier supply mechanism 3 and an oxidation reduction potential modifier supply mechanism 4 provided midway in this supply pipe 2, a membrane-type deaerator 5, and a particulate removal filter 6. The supply pipe 2 branches into a main pipe 7 and a drain pipe 8. The main pipe 7 is provided with a first instantaneous flow meter 10, and is further in communication with a single wafer-cleaning device 9. The drain pipe 8 is provided with a second instantaneous flow meter 11, and is further provided with a flow-regulating valve 12. A sensor unit 13 is provided between the membrane-type deaerator 5 and the particulate removal filter 6. A control means 15 can control the flow-regulating valve 12. According to the present invention, even if the flow rate used by the wafer-cleaning device fluctuates, it is possible to stably supply with good accuracy a solute concentration of the liquid for semiconductor manufacturing at a desired value.
A drinking water supply system 1 according to the present invention is such that between water supply pipelines 2, 2A, 2B, 2C, 2D for supplying raw water W and a discharge part 8 provided to the terminal of the water supply pipelines are provided sequentially a pretreatment filter 3, a boosting pump 4, a flowmeter 5, a mineral addition module 6, and a water-purifying filter 7 that uses silver-coated activated carbon. The water-purifying filter 7 holds a filter material comprising fibrous activated carbon impregnated with silver ions between a microfiltration membrane or ultrafiltration membrane and a nonwoven fabric, for example. In this water supply pipeline 2, a sodium hypochlorite addition mechanism 9 that incorporates a sodium chloride addition mechanism and has a dosing pump 10 is connected before the pretreatment filter 3. With the present invention, a drinking water supply system that is capable of suitably maintaining hygiene management over the long term and uses the antibacterial effect of silver can be provided.
C02F 9/04 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement chimique
C02F 9/08 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement physique
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/50 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition ou emploi d'un germicide, ou par traitement oligodynamique
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p.ex. par addition d'oligo-éléments
C02F 1/76 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen d'halogènes ou de composés halogénés
The method for operating an ion exchange device employed in the present invention involves: measuring, during a cycle of water flowing and regeneration, a raw water load which is the product of the flow rate of raw water in a water flowing step and the ion concentration of a target component in the raw water; calculating, through simulation, a predicted amount of water that can be sampled by an ion exchange resin on the basis of the raw water load, wherein, in the simulation, performance change tendency information pertaining to the ion exchange resin is preliminarily acquired, and the simulation is conducted while correcting simulation conditions in consideration of the performance change tendency information; setting a water sampling amount controlling value on the basis of the calculated predicted amount of water that can be sampled; and switching from the water flowing step to a regeneration step at the time when the amount of sampled raw water in the water flowing step reaches the water sampling amount controlling value.
Provided are a method and a device for treating fluorine-containing water, the method and device making it possible to suppress blockages in a RO device even if the number of processes is reduced. According to the present invention, fluorine-containing water is treated by using a device for treating fluorine-containing water, the device having: a pH adjustment tank 11 for adding a hydrogen peroxide decomposition agent and a pH adjustment agent to the fluorine-containing water; a filter 14 for filtering the water flowing out from the pH adjustment tank 11; an activated carbon tower 15 into which the filtered water from the filter 14 flows; an MF device 17 into which the water flowing out from the activated carbon tower 15 flows; a reverse-osmosis membrane device 19 into which the water that has passed through the MF device flows; and a reaction tank 22, a flocculation tank 23, and a sludge tank 24 for adding a calcium compound to the water concentrated in the reverse-osmosis membrane device 19 to carry out a fluorine removal treatment.
Provided is a method for treating fluorine-containing water, which can control the amount of a calcium compound added to a sludge modification tank to a proper amount in a fluorine-containing water treatment device in which a part of sludge separated in a solid-liquid separation tank is introduced into a modification tank, and a calcium compound is added thereto, followed by circulation to a reaction tank. In a first reaction tank 1, modified sludge from a sludge modification tank 5 and, if required, a calcium compound and a pH adjuster are added to raw water, and the resultant is introduced into a flocculation tank 3 through a second reaction tank 2 and subjected to flocculation treatment. Flocculation treatment water in the flocculation tank 3 is subjected to solid-liquid separation in a precipitation tank 4, and a part of the separated sludge is introduced into the sludge modification tank 5. A calcium compound-containing liquid is added to the sludge modification tank 5 via a control valve 13. The amount of the calcium compound added is controlled on the basis of the flow rate and fluorine concentration of raw water and the calcium concentration in the second reaction tank 2.
C02F 1/54 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension utilisant des produits organiques
C02F 1/58 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par élimination de composés spécifiés dissous
Provided is a flocculation processing device that controls chemical feeding on the basis of a flocculation state monitoring sensor and makes is possible to accurately control the addition amount of a flocculant while taking into account the color and quantity of particles. The flocculant is added to a flocculation tank 3 by a chemical-feeding device 4. A detection signal from a flocculation state monitoring sensor 10 provided in a flocculation device 3 is input into a controller 8, and the chemical-feeding device 4 is controlled. The flocculation state monitoring sensor 10 comprises: a light-emitting unit that irradiates laser light toward a flocculation treatment liquid; and a light-receiving unit in which the light-receiving optical axis is orthogonal to the light-emitting optical axis of the light-emitting unit. A light-reception signal intensity is used to correct a light-reception signal intensity variation width, and a floc formation state is determined on the basis of the corrected value of the light-reception signal intensity variation width.
Provided is a control system that can maintain a stable control state even during maintenance of an indication regulator or a PLC or in the event of failure of the indication regulator or the PLC. This control system comprises: an indication regulator that acquires a measurement value from a sensor, that makes a comparison between the measurement value and a target value, and that transmits a first control value to a to-be-controlled device on the basis of the comparison result; and a programmable logic controller (PLC) that acquires the first control value from the indication regulator, that acquires the measurement value from the sensor, that makes a comparison between the measurement value and the target value, and that generates a second control value on the basis of the comparison result. When the control entity of the to-be-controlled device is the indication regulator, the PLC is configured to impart the first control value outputted by the indication regulator to the to-be-controlled device. If an abnormality has occurred in the indication regulator, the PLC outputs a control value the same as the first control value and imparts the control value to the to-be-controlled device.
G05B 19/05 - Automates à logique programmables, p.ex. simulant les interconnexions logiques de signaux d'après des diagrammes en échelle ou des organigrammes
This primary pure-water production apparatus has a reverse osmosis membrane device, a de-aeration membrane device, an ultraviolet oxidation device, an electrical de-ionization device 9, and a water-supply pump for supplying supply water to the electrical de-ionization device 9. In the primary pure-water production apparatus: water W4 being treated, which is treated using the ultraviolet oxidation device 7, is channeled to the electrical de-ionization device 9; impurities in ionization that arise from organic matter decomposed through UV oxidation are removed; and desalinated water W5 is produced. In this procedure, the desalinated water W5 is fractionated and supplied as supply water (electrode water) for a concentration chamber 26 and electrode chambers (positive-electrode chamber 27 and negative-electrode chamber 28) in the electrical de-ionization device 9, whereby the hydrogen peroxide concentration of the supply water for the concentration chamber 26 and the electrode chambers (positive-electrode chamber 27 and negative-electrode chamber 28) in the electrical de-ionization device 9 is made less than the hydrogen peroxide concentration of the water W4 being treated that is supplied to a desalination chamber 25. According to the present invention, it is possible to provide a method for operating a pure-water production system capable of suppressing any deterioration in an ion-exchange substance within an electrode, a concentration chamber, or an electrode chamber in an electrical de-ionization device by using a simple configuration.
C02F 1/32 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation par la lumière ultraviolette
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
80.
ESTIMATION SYSTEM, ESTIMATION DEVICE, ESTIMATION METHOD, AND ESTIMATION PROGRAM
[Problem] To provide an estimation system, an estimation device, an estimation method, and an estimation program which make it possible to accurately measure at least one of moisture content and chemical content in a substance which is an ironmaking raw material and/or a power generation raw material, regardless of measurement distance or weather conditions. [Solution] An aspect of the present invention provides an estimation device which estimates the moisture content in a substance which is an ironmaking raw material and/or a power generation fuel. This estimation device comprises a moisture content model information acquisition unit, a moisture content index information acquisition unit, and a moisture content estimation unit. The moisture content model information acquisition unit is configured to acquire moisture content model information indicating a relationship between the moisture content in the substance and a moisture content index of the substance which is calculated as a function of the difference between two optical properties with respect to light of two differing wavelengths in the wavelength range of 800-2400 nm. The moisture content index information acquisition unit is configured to acquire moisture content index information indicating the moisture content index of the substance which is subject to estimation. The moisture content estimation unit is configured to estimate the moisture content of the substance which is subject to estimation, on the basis of the moisture content model information and the moisture content index information.
G01N 21/27 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
G01N 21/3554 - Couleur; Propriétés spectrales, c. à d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p.ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge pour la détermination de la teneur en eau
This dispersant is intended to be added to water of interest that contains at least one protein/peptide before the treatment of the water with a selective permeable membrane, the dispersant comprising a polymer that contains at least one styrenesulfonic acid/styrenesulfonate as a monomer, in which the polymer has a weight average molecular weight of more than 1000.
Provided is a method for improving the efficiency of heat transmission that can effectively improve the efficiency of heat transmission by steam in a low-pH steam system with a pH of less than 7. This method for improving the efficiency of heat transmission by steam is characterized in that a sarcosine compound is made to be present in the steam system with a pH of less than 7, during a step in which steam is introduced into a heat exchanger and an item to be heated is heated, or a step in which the steam is liquefied and condensed by being brought into contact with a cooling body. The sarcosine compound is preferably a long-chain sarcosine compound that is expressed by formula (I). Formula (I): R132nn–COOR2 In formula (1), R1is a C7-24 unsaturated or saturated straight-chain or branched hydrocarbon group, n is an integer from 0 to 2, and R2 is a hydrogen atom or a salt-forming group.
C23F 11/02 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans l'air ou les gaz par addition d'inhibiteurs en phase vapeur
F26B 21/00 - Dispositions pour l'alimentation ou le réglage de l'air ou des gaz pour le séchage d'un matériau solide ou d'objets
F28B 1/02 - Condenseurs dans lesquels la vapeur d'eau ou autre vapeur est séparée de l'agent de refroidissement par des parois, p.ex. condenseur à surface utilisant l'eau ou un autre liquide comme agent de refroidissement
F28B 1/06 - Condenseurs dans lesquels la vapeur d'eau ou autre vapeur est séparée de l'agent de refroidissement par des parois, p.ex. condenseur à surface utilisant l'air ou un autre gaz comme agent de refroidissement
F28F 21/08 - Structure des appareils échangeurs de chaleur caractérisée par l'emploi de matériaux spécifiés de métal
The present invention addresses the problem of providing a water quality measurement device which makes it possible to avoid a decline in measurement accuracy due to the target water being still, to prevent a decline in ultrapure water production efficiency caused by an increase in the blow water amount, and to avoid complicating the periphery of the measurement device. A valve 10V is opened for a prescribed time period, collected water from a pipe 1 downstream from a pump 2 flows into a water quality measurement apparatus via a pipe 10, a loop-shaped pipe 20, and a measurement pipe 21, and the water quality of the water to be treated is measured. Thereafter, the valve 10V is closed, the valve 11V is opened for a prescribed time period, and the water quality of filtered water which has passed through a UF membrane module 4b is measured. The valves 12V, 13V, 14V are sequentially opened for a prescribed time period, and the water quality of the filtered water from the UF membrane filter 4c, the combined filtered water and the water to be treated is measured. The steps described above constitute one cycle, which is repeated.
NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY (Japon)
Inventeur(s)
Kawakatsu, Takahiro
Fujimura, Yu
Asakawa, Hitoshi
Morimoto, Masayuki
Abrégé
Provided are a fine particle adsorption material and removal method that enable sufficient removal of fine particles from a solvent having a low water content. This fine particle adsorption material is for adsorbing and removing fine particles from a solvent containing the fine particles. The material has a graft chain that is a negatively charged group. A polymer material that serves as a base material for the fine particle adsorption material is an aliphatic hydrocarbon, or an aliphatic hydrocarbon containing fluorine or chlorine. This method for removing fine particles from a solvent comprises bringing said fine particle adsorption material into contact with the solvent, and thereby causing the fine particles in the solvent to be adsorbed by the fine particle adsorption material and to be removed from the solvent.
B01D 15/00 - Procédés de séparation comportant le traitement de liquides par des adsorbants ou des absorbants solides; Appareillages pour ces procédés
B01D 15/04 - Procédés de séparation comportant le traitement de liquides par des adsorbants ou des absorbants solides; Appareillages pour ces procédés par des substances échangeuses d'ions comme adsorbants
B01J 39/05 - Procédés utilisant des échangeurs organiques sous forme fortement acide
B01J 39/20 - Composés macromoléculaires obtenus par des réactions ne faisant intervenir que des liaisons carbone-carbone non saturées
B01J 47/12 - Procédés d'échange d'ions en général; Appareillage à cet effet caractérisés par l'emploi d'une substance échangeur d'ions sous forme de rubans, de filaments, de fibres ou de feuilles, p.ex. sous forme de membranes
B01J 47/127 - Procédés d'échange d'ions en général; Appareillage à cet effet caractérisés par l'emploi d'une substance échangeur d'ions sous forme de rubans, de filaments, de fibres ou de feuilles, p.ex. sous forme de membranes sous forme de filaments ou de fibres
The present invention maintains the liquid inside a mixing tank in a homogeneous state and prepares a produced stabilized halogen aqueous solution by mixing a halogen-based oxidizer aqueous solution with a stabilizer aqueous solution without generating a sudden reaction between the halogen-based oxidizer and the stabilizer. While constantly and substantially continuously stirring the inside of a mixing tank 10, a stabilizer aqueous solution is supplied from a tank 1 to the mixing tank 10, and a halogen-based oxidizer aqueous solution is supplied from a tank 4 to the mixing tank 10. Subsequently, the inside of the mixing tank 10 is stirred further to prepare a stabilized halogen aqueous solution, and chemical injection is performed. The stirring is performed using a circulation pump 13.
The present invention makes it possible to generate layout information in a short time, even for large-scale plants. Provided is an automatic layout design method at least comprising: a classification step in which an arithmetic calculation unit provided in a computer classifies a plurality of devices that are disposed on a plant floor into a plurality of device groups on the basis of the degree of relevance between the plurality of devices; and a general design step in which the arithmetic calculation unit generates general layout information that shows the device groups arranged on the floor such that the total distance between device groups is minimized.
G06F 30/13 - Conception architecturale, p.ex. conception architecturale assistée par ordinateur [CAAO] relative à la conception de bâtiments, de ponts, de paysages, d’usines ou de routes
G05B 19/418 - Commande totale d'usine, c.à d. commande centralisée de plusieurs machines, p.ex. commande numérique directe ou distribuée (DNC), systèmes d'ateliers flexibles (FMS), systèmes de fabrication intégrés (IMS), productique (CIM)
Provided is a method that is for operating a reverse osmosis membrane device and that enables inhibiting deposition of silica during halting of the operation, and stable operation of the reverse osmosis membrane device after resuming the operation. This method is for operating a reverse osmosis membrane device, comprises a treatment step for passing, through a reverse osmosis membrane device 8, a to-be-treated water to which an acid has been added to have an acidic pH of 6 or less, and a halting step for halting passage of water through the reverse osmosis membrane device 8, and is characterized in that when the halting step has continued for at least a predetermined period of time, the water in the reverse osmosis membrane device 8 is replaced with dilute water.
When an ion-exchange resin recovered from a non-regenerative type ion-exchange device 7 of a specific user is brought back, the present invention regenerates the ion-exchange resin by separating the same into an anion-exchange resin and a cation-exchange resin and performing a regeneration step according to the grade, etc. of the ion-exchange resin on the basis of information recorded in an information processing means 23. At this time, when the ion-exchange resin recovered from the non-regenerative type ion-exchange device 7 is regenerated, a loss of the ion-exchange resin occurs, and the amount of usable regenerated ion-exchange resin is less than the recovered amount. Therefore, by supplementing this reduced amount of the ion-exchange resin with a new ion-exchange resin, it is possible to suitably manage the replacement of an ion-exchange resin in the non-regenerative type ion-exchange device 7. The present invention can provide a method for replacing an ion-exchange resin, the method making it possible to suitably manage the replacement of an ion-exchange resin filled into a non-regenerative type ion-exchange device of a specific user.
Provided are a method and device for producing ultrapure water in which, after pure water is passed through a UV oxidation device, said pure water is channeled through an ion exchange device and then through a sub-system, wherein it is possible to raise the efficiency of breaking down organic matter in the UV oxidation device. Specifically, provided is a method for producing ultrapure water using an ultrapure water production apparatus having a pre-treatment device 2, a primary pure water device 4, and a sub-system 20, wherein primary pure water from the primary pure water device 4 is subjected to a de-aeration treatment by a de-aeration membrane device 7 such that the DO concentration after de-aeration is 20-80 ppb, after which said pure water is channeled through a UV oxidizer 11 and an ion exchange device 12 and then supplied to the sub-system 20.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p.ex. dialyse, osmose ou ultrafiltration; Appareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
C02F 9/02 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout comportant une étape de séparation
This power storage device structure comprises: a power storage device; and a casing that encloses the power storage device with a gap therebetween. The power storage device structure is configured such that a shaped body containing an acrylic adhesive is disposed in the gap between the power storage device and the casing. This shaped body preferably has a tape-like, film-like or sheet-like shape. With such a power storage device structure, it is possible to reduce the risk of the structure catching fire when the power storage device, or in particular, a power storage device stack in which a plurality of power storage devices are stacked, is in an abnormal state such as being damaged or overcharged.
H01M 50/202 - Boîtiers ou cadres autour du boîtier primaire d’une seule cellule ou d’une seule batterie
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/218 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par le matériau
The present invention provides: an electrodeionization system 1 equipped with a plurality of electrodeionization devices 1A provided in parallel, the electrodeionization system comprising: a water supply flow rate changing means for changing the flow rate of water supplied to the plurality of electrodeionization devices 1A; a concentrated water flow rate adjusting means for adjusting, for each electrodeionization device 1A, the flow rate of concentrated water W4 discharged from each of the plurality of electrodeionization devices 1A; and a concentrated water flow rate maintaining means for maintaining the flow rate of concentrated water W4 discharged from each of the plurality of electrodeionization devices 1A to be a certain level or higher, wherein the concentrated water flow rate maintaining means is provided only in a main flow path 23 in which a plurality of sub-flow paths 22, through which desalted water W2 produced in each of the plurality of electrodeionization devices 1A flows, are integrated, and a main path 25 in which a plurality of sub-paths 24, through which the concentrated water W4 discharged from each of the plurality of electrodeionization devices 1A flows, are integrated; and a control method for the electrodeionization system 1. According to the present invention, an electrodeionization system equipped with a plurality of electrodeionization devices and capable of reducing production costs while suppressing the generation of scale due to a decrease in the flow rate of water supplied to each electrodeionization device, and a control method therefor can be provided.
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
Provided is a water treatment system in which wiring work is not needed between a water treatment unit and an integrated control board. This water treatment system is provided with: pumps 2, 5, a pre-treatment device 3, an activated carbon filtration device 4, an RO device 6, and a deionization device 7; individual controllers 12-17 provided to the pumps 2, 5, the pre-treatment device 3, the activated carbon filtration device 4, the RO device 6, and the deionization device 7; and an integrated control board 20 that communicates with the individual controllers 12-17 through near-field wireless communication. The individual controllers 12-17 are capable of communicating with each other through near-field wireless communication. The pumps 2, 5, the pre-treatment device 3, the activated carbon filtration device 4, the RO device 6, and the deionization device 7 are standardized products.
The present invention provides a technique with which a water system having a reverse osmosis membrane device can be stably operated over a longer period of time. The present invention can provide a method for operating a reverse osmosis membrane device, the method comprising: a first step for intermittently adding an oxidation-based slime inhibitor and intermittently supplying water to be treated containing the oxidation-based slime inhibitor to a reverse osmosis membrane device; and a second step for adding an organic-based slime inhibitor at least during a period other than the addition period of the first step and supplying the water to be treated containing the organic-based slime inhibitor to the reverse osmosis membrane device.
A power storage device structure according to the present invention comprises a power storage device and a casing that encloses the power storage device with a gap therebetween, and has a structure in which a molded body containing an acrylic resin or a molded body containing a copolymer of a monomer used for polymerizing an acrylic resin and another monomer is placed in the gap between the casing and the power storage device. The molded body is preferably in the shape of a film, sheet, or plate. With such a power storage device structure, it is possible to reduce the risk of a power storage device, and in particular a power storage device stack in which a plurality of power storage devices have been stacked, igniting during an abnormality such as when damaged or overcharged.
H01M 10/647 - Chauffage ou refroidissement; Commande de la température caractérisé par la forme des éléments Éléments prismatiques ou plans, p.ex. éléments de type poche
H01M 10/651 - Moyens de commande de la température associés de façon structurelle avec les éléments caractérisés par des paramètres spécifiés par une valeur numérique ou une formule mathématique, p.ex. rapports, tailles ou concentrations
H01M 10/6595 - Moyens de commande de la température associés de façon structurelle avec les éléments par des réactions chimiques autres que les réactions électrochimiques des éléments, p.ex. appareils de chauffage catalytique ou brûleurs
H01M 50/202 - Boîtiers ou cadres autour du boîtier primaire d’une seule cellule ou d’une seule batterie
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/218 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports caractérisés par le matériau
In a method for controlling an electrodeionization device 1 according to the present invention, the flow rate of supply water W1 which is supplied to the electrodeionization device 1 is decreased in stages while a constant flow rate of concentrated water W5 which is discharged from the electrodeionization device 1 is maintained. With such a method for controlling an electrodeionization device, even when the flow rate of supply water supplied to the electrodeionization device is decreased, it is possible to prevent an increase in electrical conductivity and therefore to suppress the occurrence of scale.
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 1/469 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques par séparation électrochimique, p.ex. par électro-osmose, électrodialyse, électrophorèse
96.
METHOD FOR TREATING ACIDIC EXHAUST GAS, EQUIPMENT FOR TREATING ACIDIC EXHAUST GAS, AND INCINERATION FACILITY
Provided are: a method for treating acidic exhaust gas, the method having a first step for treating an acidic gas within acidic exhaust gas by using an OH-type Mg-Al layered double hydroxide; equipment for treating acidic exhaust gas, the equipment having a means for carrying out the aforementioned treatment method; and an incineration facility having the aforementioned treatment equipment.
B01D 53/96 - Régénération, réactivation ou recyclage des réactifs
B01J 20/08 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtration; Absorbants ou adsorbants pour la chromatographie; Procédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant des oxydes ou des hydroxydes des métaux non prévus dans le groupe contenant de la bauxite
This combustion exhaust gas treatment method comprises: a dry-mode treatment step for adding an alkali agent to an untreated combustion exhaust gas containing an acidic gas to neutralize the acidic gas, thereby producing an alkali-treated combustion exhaust gas; a dust collection step for supplying the alkali-treated combustion exhaust gas to a dust collector to collect fly ash; and a heavy metal fixation step for discharging the fly ash from the dust collector and adding a heavy metal fixing agent to the fly ash to fix a heavy metal in the fly ash. In the method, the concentration of the acidic gas in the untreated combustion exhaust gas is measured, the amount of the alkali agent to be added to the untreated combustion exhaust gas is calculated on the basis of a measurement value of the concentration of the acidic gas, and the alkali agent is added in the calculated amount, and the concentration of the unreacted alkali agent in the fly ash discharged from the dust collector is calculated, the amount of the heavy metal fixing agent to be added to the fly ash is calculated on the basis of a calculation value of the concentration of the unreacted alkali agent, and the heavy metal fixing agent is added in the calculated amount.
This functional aqueous solution supply apparatus 1 comprises: a supplementary feed water production part 3 that is supplied with ultrapure water W from a pipeline 2 and produces a functional aqueous solution as washing water W1; a storage tank 5 that is supplied and refilled with the produced washing water W1 through a piping 4; and a circulation pipeline 7 that supplies the washing water W1 from the storage tank 5 to leaf-type washing machines 6A, 6B, 6C, and 6D and that returns unused washing water W1 to the storage tank 5. The circulation pipeline 7 splits into supply pipes 7A, 7B, 7C, and 7D, which are then connected, through the washing machines 6A, 6B, …, to return pipes 8A, 8B, 8C, and 8D in communication with the circulation pipeline 7. Further, the operation plan of the washing machines 6A, 6B, … is provided to a control means 9 in advance, and with the control means 9, control of the supplementary feed water production part 3 is enabled. With this functional aqueous solution supply apparatus, it is possible to supply a functional aqueous solution as washing water to a use point such as washing equipment including an electronic component, an electronic member, and the like.
H01L 21/304 - Traitement mécanique, p.ex. meulage, polissage, coupe
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p.ex. par addition d'oligo-éléments
C02F 1/70 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par réduction
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 1/78 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation au moyen d'ozone
99.
METHOD FOR SUPPRESSING WATER SYSTEM BIOFOULING AND WATER TREATMENT DEVICE
A method for treating water that includes a chlorine-based oxidant and suppresses fouling of a reverse osmosis membrane. The method includes: the addition of a biofouling suppression agent or slime control agent to water that includes a chlorine-based oxidant; the addition of a reducing agent to the water to which the biofouling suppression agent or slime control agent has been added; and the treatment, using a reverse osmosis membrane, of the water to which the reducing agent has been added.
Provided is a method for controlling an RO system with which it is possible to reduce the power consumption (that is, CO2) and the amount of waste and achieve stable operation by reducing the use of chemicals and the frequency of membrane replacement, which contributes to energy saving. A method for controlling an RO system comprising a plurality of RO devices 41 to 44 parallelized, and a control unit that controls start-stop processing including operation processing and stop processing for the RO devices 41 to 44, wherein control is performed such that the more easily the processing ability of an RO device can be recovered through start and stop, the more frequently the RO device is started and stopped.
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