The present invention relates to a method for providing corrosion protection to a pressurized water-steam system using N-acylsarcosines or a salt thereof in very low amounts and to a method for determining the concentration of an N-acylsarcosine in an aqueous solution or emulsion.
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
37 - Services de construction; extraction minière; installation et réparation
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Detectors (measuring devices); measuring apparatus. air filters and air filter units; air purifying units and equipment; filters for cleaning air [parts of air cleaning machines or installations]; Filters for removing airborne chemicals in cleanroom or industrial manufacturing facilities. Industrial cleaning services, namely, services for cleaning machines, tools, jigs, used in manufacturing; installation, repair and maintenance of environmental control systems for clean rooms; installation, repair and maintenance of clean room facilities and equipment; Maintenance, repair and cleaning of apparatus and machinery for manufacturing semiconductors; maintenance, repair and cleaning of machines and systems for manufacturing integrated circuits; maintenance, repair and cleaning of apparatus and machinery for manufacturing electric equipment, medical equipment and precision equipment; repair or maintenance of measuring and testing machines and providing information relating thereto; installation, maintenance and repair of air freshening apparatus; installation, maintenance and repair of manufacturing plants; construction, repair and maintenance of buildings; cleaning and maintenance of equipment or equipment parts used in creating, operating or maintaining clean room environments; providing information relating to the maintenance of measuring and test equipment; providing information relating to the repair or maintenance of semi-conductor manufacturing machines and systems; providing information relating to the repair or maintenance of machines and systems for manufacturing integrated circuits; providing information relating to the repair or maintenance of manufacturing plants; consulting services relating to the installation, maintenance or repair of machines and apparatus used in industrial field; Provision of information and consulting services regarding the repair, cleaning and maintenance of apparatus and equipment used in the manufacture of semiconductors, flat panel displays, electric equipment, medical equipment, or precision equipment; Consulting services for construction, installation, renovation, repair and maintenance of clean room facilities and equipment. Coating and treatment of surface of machines, equipment, jigs and parts used in clean room environments; surface modification and treatment services for machinery, equipment, parts, tools and jigs; coating services for machinery, equipment, parts, tools and jigs; Regeneration and reclamation of contaminants and deposits removed from the surfaces of machinery and equipment; Application of protective surface coatings to machines and tools; coating and surface finishing of machines and tools; application of coatings using chemical, mechanical, thermal or thermomechanical processes; recycling of waste and trash; information, advice and consultancy services relating to the recycling of waste and trash; water purification; air purification. planning and layout design services for cleanroom environments; testing, analysis and evaluation of the goods and services of others for the purpose of certification; Testing and evaluation services for machinery, equipment, instruments and tools used in the construction, operation or maintenance of cleanroom environments; Testing and certification services for clean room environmental management in accordance with the orders and specifications of authorized bodies; chemical analysis services; industrial research, testing and analysis services; design and development of testing and analysis methods; architectural consultancy services; testing, inspection and research of semiconductor manufacturing equipment and other equipment used in cleanroom environment; Research on cleaning, surface processing and modification of machinery, equipment, and parts used in manufacturing processes of semiconductor, electronic equipment, precision instruments and medical equipment; Research on materials, goods, and technologies related to the construction, management, and maintenance of clean room environments; engineering services in the field of environmental technology; monitoring of industrial processes; monitoring of clean rooms; providing temporary use of online non-downloadable computer software for use in monitoring of industrial manufacturing processes or cleanroom; remote diagnostic and monitoring services for the conditions of industrial manufacturing processes or cleanroom.
3.
PH/REDOX POTENTIAL-ADJUSTED WATER PRODUCTION APPARATUS
The pH/redox potential-adjusted water production apparatus includes a supply line for ultrapure water, which is provided with a platinum group metal-supporting resin column. The ultrapure water supply line is branched downstream into a first adjusted water production line and a second adjusted water production line. The first adjusted water production line communicates with a pH adjuster tank and a redox potential adjuster tank, and a first reservoir is provided downstream from them. The second adjusted water production line communicates with a pH adjuster tank and a redox potential adjuster tank, and a second reservoir is provided downstream from them. With such a pH/redox potential-adjusted water production apparatus, it is possible to dissolve a predetermined amount of wiring metal in a wiring production step for semiconductors in which a transition metal such as cobalt is used as the wiring metal.
There is provided a method for controlling an RO system, the method being capable of reducing power consumption (that is, CO2) and the amount of waste by reducing the amount of use of chemicals and the number of times of exchanging a membrane and capable of enabling stable operation and contributing to energy saving. A method for controlling an RO system, the RO system including a plurality of RO apparatuses 41 to 44 arranged in parallel and a control unit controlling a start/stop process, the start/stop process including an operation process and a stop process for the RO apparatuses 41 to 44, wherein control is performed so that the number of times of start/stop is larger for an RO apparatus that easily recovers treatability by start/stop.
B01D 65/08 - Prévention de l'encrassement de la membrane ou de la polarisation par concentration
5.
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.
A method for operating a reverse osmosis membrane device, a slime control method that is applied to a reverse osmosis membrane device, and a water treatment device are provided. The method comprises: 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.
The present invention is a method for operating a demineralization apparatus provided with a plurality of demineralizing lines arranged in parallel and having demineralizers, the method comprising passing through some of the demineralizing lines water to be treated to produce demineralized water while passing through another demineralizing line(s) dilute water from a dilute water tank to perform washing of the line(s), and returning water used for said washing back to the dilute water tank, and being characterized by, when the water quality of the dilute water is on the high salts concentration side past a predefined value, discharging part of the dilute water so as to let said part join the water to be treated and providing a new supply of dilute water for replenishment.
The invention provides a management system of coal and/or steelmaking dust being managed outdoors. The management system includes an imaging unit, a threshold information acquiring unit, and a determining unit. The imaging unit is configured to perform imaging of heat distribution image information indicating a heat distribution image of a surface layer of a pile of the coal and/or steelmaking dust from a position where imaging of an entire surface layer of the pile can be performed. The threshold information acquiring unit is configured to acquire threshold information indicating a threshold of a temperature of the surface layer of the pile. The determining unit is configured to determine heat generation of the pile based on the heat distribution image information and the threshold information.
[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"
14.
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
15.
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
18.
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
A production device for pH/redox potential-adjusted water (1) of the present invention includes a platinum group metal-supporting resin column (3) that is provided in a supply line (2) of ultrapure water (W) and a pH adjuster tank (4) and a redox potential adjuster tank (5) that are provided downstream the platinum group metal-supporting resin column (3). A membrane-type degassing device (6) is provided downstream them, and a gas-dissolving membrane (7) is disposed downstream the membrane-type degassing device (6). A cleaning water quality monitoring mechanism including a pH meter, an ORP meter, and an inert gas concentration measuring means is provided downstream the gas-dissolving membrane (7) of the supply line (2). The cleaning water quality monitoring mechanism is connected to a control means (not illustrated). The control means is capable of controlling a pump (4B) of the pH adjuster tank (4), a pump (5B) of the redox potential adjuster tank (5), and the gas-dissolving membrane (7) based on the measurement values of the cleaning water quality monitoring mechanism. With such a configuration, the present invention can suppress dissolution of metals to a minimum level in a rinsing step for the surfaces of wafers on which chromium group elements are exposed.
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.
The purpose of the present invention is to provide a technique whereby it becomes possible to operate for a longer period of time in an aqueous system equipped with a membrane separation apparatus. The present invention can provide a membrane separation method, the method comprising containing a combined-chlorine-based oxidizing agent to water of interest, and allowing the water of interest which contains the combined-chlorine-based oxidizing agent to pass through a membrane separation apparatus, in which the water of interest which contains the combined-chlorine-based oxidizing agent has a Free 300-second value of 0.036 mg/L-Cl2 or more wherein the Free 300-second value is a result of the measurement of a chlorine concentration after 300 seconds using a free chlorine measurement reagent.
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
An exhaust gas treatment facility includes: a combustion chamber for combustion-treating an exhaust gas; a nozzle for letting water flow along an inner wall surface of the combustion chamber; a water-feeding line for supplying water to the nozzle; a primary gas-cleaning chamber; a scrubber; and the like. The water-feeding line has a pipe, a pump, and pipes. An alkali-adding apparatus is provided on the pipe on an upstream side of the pump. The alkali-adding apparatus is controlled so as to regulate a detected pH by a pH meter to be 10 or higher.
B01D 53/18 - Unités d'absorption; Distributeurs de liquides
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisation; Ajustage du pH
B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
28.
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
32.
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
33.
CIRCULATING COOLING WATER TREATMENT METHOD AND COOLING PERFORMANCE IMPROVEMENT METHOD
The present invention provides a technique for improving the cooling performance of a cooling tower in a circulating cooling water system having the cooling tower. The present invention provides a method for improving cooling performance of a cooling tower in a circulating cooling water system having the cooling tower, wherein cooling water used in the circulating cooling water system is cooling water to which an agent including a surfactant is added, and the cooling water satisfies (a) a dynamic contact angle of 55° or less and (b) a bubble bulkiness of 250 mL or less.
F28F 23/00 - Caractéristiques relatives à l'utilisation de matériaux servant pour échange intermédiaire de chaleur, p.ex. emploi de compositions spécifiées
C09K 5/20 - Additifs antigel pour ces substances, p.ex. pour liquides de radiateur
34.
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.
Wafer cleaning water supply device (1) has a wafer cleaning water production unit (2) that prepares wafer cleaning water (W1) from ultrapure water (W) supplied from a supply path (5), a reservoir (3) for the prepared wafer cleaning water, and a wafer cleaning water supply pipe (6) that supplies the wafer cleaning water (W1) stored in the reservoir (3) to a cleaning nozzle (4A) of a cleaning machine (4). A return pipe (7) is connected to the wafer cleaning water supply pipe (6) on the cleaning machine (4) side so as to be branched at a distance (t) from the tip of the cleaning nozzle (4A), and the wafer cleaning water (W1) which is excessive in the cleaning machine (4) can be returned to the reservoir (3). Such a wafer cleaning water supply device can reduce excessive wafer cleaning water.
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
41.
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.
The wafer cleaning water supply system of the present invention has a wafer cleaning water production unit producing wafer cleaning water having a chemical agent, a replenishment pipe extending from the wafer cleaning water production unit, and a circulation-type cleaning water supply pipe connected to the replenishment pipe. The circulation-type cleaning water supply pipe feeds a liquid to a use point via a feeding pump and is provided with a supply-side flowmeter and a recovery-side flowmeter. The measurement results of the supply-side and recovery-side flowmeters and the water quality data obtained by a monitor of a sampling pipe for monitoring are transmitted to a control device, which controls the wafer cleaning water production unit. With such a configuration, the wafer cleaning water supply system involves a small amount of excess water, dissolved gas is less likely to be mixed with the wafer cleaning water, and space-saving is possible.
H01L 21/67 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitement; Appareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants
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 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisation; Ajustage du pH
44.
CONTROL METHOD FOR ULTRAPURE WATER PRODUCING APPARATUS
In a primary pure water device, an electric deionization device communicated with a water supply pump is provided with a DC power supply, and desalted water from the electric deionization device can be supplied to a sub-tank. The sub-tank is provided with a level switch. In addition, while a control valve and a flow meter are provided in a flow path for the desalted water from the electric deionization device, a control valve and a flow meter are also provided in a flow path for concentrated water from the electric deionization device. The measurement data of the level switch and the flow meters can be transmitted to a control device, which can control the water supply pump and the control valves.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
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
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
49.
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
50.
SAMPLING DEVICE FOR COAGULATION TREATMENT DEVICE, COAGULATION TREATMENT DEVICE, AND WATER TREATMENT METHOD
This sampling device for a coagulation treatment device (1) comprises at least: a sealed-type coagulation reaction tank to which is introduced water to be treated to which a flocculant has been added; and a solid-liquid separation tank to which is introduced the water to be treated that has been drawn from the coagulation reaction tank, the sampling device comprising a sampling tank, a coagulation sensor installed inside the sampling tank, and a water sending pipe (43) which sends, from the coagulation reaction tank of the coagulation treatment device to the sampling tank, a part of the water to be treated inside the coagulation reaction tank.
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
53.
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 method for operating a desalting device that has a first desalting device and a second desalting device, said method comprising: a normal operation step for supplying to-be-treated water to the first desalting device so as to separate the to-be-treated water into first concentrated water and first desalted water, and supplying the first concentrated water to the second desalting device so as to separate the first concentrated water into second concentrated water and second desalted water; and a recovery operation step for supplying the to-be-treated water to the first desalting device so as to separate the to-be-treated water into the first concentrated water and first permeate water, and passing dilute water having a lower concentration than the first concentrated water through the second desalting device so as to recover desalting performance of the second desalting device.
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.
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 5/08 - 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
C11D 11/00 - Méthodes particulières pour la préparation de compositions contenant des mélanges de détergents
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.
The invention provides a management system of a material which is a steelmaking raw material and/or a fuel for power generation and which is managed outdoors. The management system includes a moisture content information acquiring unit, a weather information acquiring unit, and a predicting unit. The moisture content information acquiring unit is configured to acquire moisture content information indicating a moisture content contained in the material. The weather information acquiring unit is configured to acquire weather information indicating outdoor meteorological phenomena forecasted for the future. The predicting unit is configured to predict a moisture content contained in the material at a specific time point in the future based on the moisture content information and the weather information.
The invention provides a management system of a material which is a steelmaking raw material and/or a fuel for power generation and which is managed outdoors. The management system includes an information managing unit, a weather information acquiring unit, and an assessing unit. The information managing unit is configured to manage, for each of piles of the material, powder dust prevention processing information including a presence or absence of existing powder dust prevention processing with respect to the material and a type of the powder dust prevention processing. The weather information acquiring unit is configured to acquire weather information indicating outdoor meteorological phenomena forecasted for the future. The assessing unit is configured to assess an occurrence of powder dust for each of the piles based on the powder dust prevention processing information and the weather information.
G01W 1/10 - Dispositifs pour la prévision des conditions météorologiques
B65G 69/18 - Prévention de l'échappement de la poussière
G01W 1/02 - Instruments pour indiquer des conditions atmosphériques par mesure de plusieurs variables, p.ex. humidité, pression, température, nébulosité ou vitesse du vent
63.
POWER TRANSMISSION END THERMAL EFFICIENCY PREDICTION METHOD ACHIEVABLE AT POWER GENERATION PLANT
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
A pure water production method for producing pure water by decarboxylating water to be treated under acidic conditions and then deionizing the result by using a reverse osmosis membrane separation device, the pH of inflow water flowing into the reverse osmosis membrane separation device and the water quality of permeated water of the reverse osmosis membrane separation device being measured, and the pH of the inflow water being adjusted on the basis of the measured pH and water quality so that the water quality of the permeated water is within a prescribed range, wherein the pH of the inflow water is changed by a predetermined width, and an operation condition adjusting step is performed for adjusting the pH of the inflow water by comparing the(average value before the water quality change average value after the water quality change.
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
B01D 61/04 - Prétraitement du courant d'alimentation
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
68.
WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS
The water treatment apparatus of the present invention comprises a flocculation part into which water to be treated is introduced, at least two flocculant adding devices installed so that different flocculants can be added to the flocculation part, one or two or more water quality measurement devices for measuring the quality of the water to be treated, and a controlling part for issuing, on the basis of the measurement result from the water quality measurement device(s), a command relating to whether addition of the flocculants to the corresponding flocculant adding device is required or not and to the added amounts of the flocculants, wherein at least one of the flocculant adding devices is an auxiliary flocculant adding device.
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing temporary use of on-line non-downloadable software for the calculation and control of dosing chemical products; providing temporary use of on-line non-downloadable software for predicting dosage and use of chemical products in water treatment membrane systems
This reverse osmosis membrane processing method comprises adjusting processing-target water to a pH range of 4 to 8 and passing the water through a reverse osmosis membrane device. The reverse osmosis membrane processing method is characterized in that alkaline water having a pH of 9.5 or higher is brought into contact intermittently with the reverse osmosis membrane of the reverse osmosis membrane device. Raw water may be preprocessed with active carbon, or the like, to serve as the processing-target water. If the processing-target water has a pH of 9.5 or higher, this processing-target water may be used as the alkaline water.
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
78.
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.
The processing system (1) is provided with an etching tank (2) and a circulation pipe (7) that exits from the bottom portion of the etching tank (2) and returns to the etching tank (2). The circulation pipe (7) is provided with a liquid feed pump (8), a heat exchanger (9), a sulfuric acid concentration meter (10), and an oxidant concentration meter (11). The sulfuric acid concentration meter (10) and the oxidant concentration meter (11) can transmit measurement results to a calculation/control device (12). The etching tank (2) can be replenished with hydrogen peroxide water, sulfuric acid, and pure water through a hydrogen peroxide water supply line (13), a sulfuric acid supply line (14), and a pure water supply line (15). The calculation/control device (12) can adjust the supply amounts of hydrogen peroxide water, sulfuric acid, and pure water to respective desired amounts. Such a processing system enables etching of a resin molded article while maintaining both the sulfuric acid concentration and the oxidant concentration of a sulfuric acid solution that is free from hexavalent chromic acid or permanganic acid and contains an oxidizing substance obtained by mixing sulfuric acid and hydrogen peroxide water.
C23C 18/24 - Pré-traitement du matériau à revêtir de surfaces organiques, p.ex. de résines pour rendre la surface rugueuse, p.ex. par décapage au moyen de solutions aqueuses acides
C23C 18/32 - Revêtement avec l'un des métaux fer, cobalt ou nickel; Revêtement avec des mélanges de phosphore ou de bore et de l'un de ces métaux
A dilute solution production apparatus produces a dilute solution of a second liquid containing at least one of a conductivity-imparting substance and an oxidation-reduction potential regulating substance by adding the second liquid to a first liquid, and is provided with: a first pipe through which the first liquid flows; a pump for adding the second liquid into of the first pipe via a second pipe; a degassing pipe which extends from the pump; a water quality sensor which is composed of a conductivity meter, a resistivity meter or an oxidation-reduction potential meter; and a control device for opening a degassing valve when a water quality detection value in the water quality sensor varies by a predetermined value or more.
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
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.
This invention effectively suppresses the corrosion fatigue of a boiler evaporation tube that is associated with repeated stress attributed to the presence of a corrosive environment and scales. This method for suppressing corrosion fatigue of a boiler evaporation tube includes maintaining the dissolved oxygen concentration of the boiler water at 1.0 mg/L or less. Preferably deionized water is used for the boiler water and a scale dispersant is present in the boiler water.
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 1/20 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dégazage, c. à d. par libération des gaz dissous
94.
CLEANING AGENT, CLEANING LIQUID AND CLEANING METHOD FOR AROMATIC POLYAMIDE REVERSE OSMOSIS MEMBRANES
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 are: a sludge dehydrating agent which can exert a steady dehydrating effect on various types of sludge and has excellent dehydration performance; and a sludge dehydration method using the sludge dehydrating agent. The sludge dehydrating agent of the present invention with a polymer which has a constituent unit derived from a cationic monomer, wherein a value k determined from an intrinsic viscosity [η] 1 [dL/g] of a 1-mol/L aqueous sodium nitrate solution of the polymer at 30° C. and an intrinsic viscosity [η] 0.01 [dL/g] of a 0.01-mol/L aqueous sodium nitrate solution of the polymer at 30° C. in accordance with formula (I) is 0.8 to 2.2 exclusive.
Provided are: a sludge dehydrating agent which can exert a steady dehydrating effect on various types of sludge and has excellent dehydration performance; and a sludge dehydration method using the sludge dehydrating agent. The sludge dehydrating agent of the present invention with a polymer which has a constituent unit derived from a cationic monomer, wherein a value k determined from an intrinsic viscosity [η] 1 [dL/g] of a 1-mol/L aqueous sodium nitrate solution of the polymer at 30° C. and an intrinsic viscosity [η] 0.01 [dL/g] of a 0.01-mol/L aqueous sodium nitrate solution of the polymer at 30° C. in accordance with formula (I) is 0.8 to 2.2 exclusive.
k=([η]0.01−[η]1)/9 (I)
C02F 11/147 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement avec addition de produits chimiques utilisant des substances organiques
B01D 21/01 - Séparation par sédimentation de particules solides en suspension dans des liquides en utilisant des agents de floculation
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.
The purpose of the present invention is to effectively reduce the corrosion fatigue of an evaporating tube in a boiler which occurs in association with a corrosive environment or repeated application of stress due to the presence of scales. A method for reducing the corrosion fatigue of an evaporating tube in a boiler, in which each of the concentration of chloride ions and the concentration of sulfate ions in the boiler water is managed at 10 mg/L or less. It is preferred to manage each of the concentration of chloride ions and the concentration of sulfate ions in boiler water by subjecting boiler feed water to a desalination treatment with an ion exchange device, a reverse osmosis membrane device or an electrodeionization device or by increasing the collection rate of boiler condensed water.
Hydrogen peroxide water and, if necessary, sulfuric acid and/or water, are added to a sulfuric acid solution in a storage tank of an electrolytic sulfuric acid solution manufacturing system to enhance the oxidizing power of the sulfuric acid solution supplied to an electrolytic cell to perform electrolysis. The manufacturing system starts up during an initial operation after completion of the system, or after replacement of a sulfuric acid-containing solution in the system, or during an operation after the concentration of a persulfuric acid component in the sulfuric acid solution stored in the system decreases due to shutdown of the system, or other similar situations. By starting up the manufacturing system in this manner, the startup of the system, which manufactures an electrolytic sulfuric acid solution containing a persulfuric acid component generated by electrolyzing sulfuric acid, can be completed in a short time, and the energy consumption can be reduced.
