Abstract

A water integrity control and disinfection method and system that measures key water parameters and can diagnose water integrity instability trends that result in loss of water integrity. Relevant water parameters that are predictive of water integrity such as cell null value as measured by in-line colorimetry provide early warning and prediction of problematic trends in the water integrity so that the system can pro-actively respond appropriately and prevent, mitigate or reverse the instability trend and maintain microbiological control of the water supply.

IPC Classes  ?

• C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
• C02F 1/00 - Treatment of water, waste water, or sewage
• G06Q 50/06 - Electricity, gas or water supply

Abstract

A system and method for controlling microbiological growth in a water system and premise plumbing system which uses stabilized hydrogen peroxide as a disinfectant and maintains water energy matrix control. Maintenance of stable hydrogen peroxide residual in the system in combination with active temperature monitoring enables better control of the water energy matrix and reduction of hot water temperature while maintaining microbiological control.

IPC Classes  ?

• C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• E03B 7/00 - Water main or service pipe systems
• E03C 1/044 - Water-basin installations specially adapted to wash-basins or baths having a heating or cooling apparatus in the supply line
• F17D 3/12 - Arrangements for supervising or controlling working operations for injecting a composition into the line
• F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL - Details
• F24H 9/20 - Arrangement or mounting of control or safety devices
• G01N 33/18 - Water
• C12Q 1/68 - Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids

Abstract

A system and method for measuring disinfectant concentration in and disinfecting dark water and controlling dark water quality. The system has a dilution pump to dilute a dark water supply, and an colorimetric analytical apparatus for measuring the amount of disinfectant in the diluted sample. A disinfectant reservoir provides disinfectant to the dark water supply in response to the colorimetric measurement obtained from the measurement cell to maintain the residual disinfectant concentration in the dark water at an appropriate level.

IPC Classes  ?

• C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• G01N 21/25 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
• G01N 21/49 - Scattering, i.e. diffuse reflection within a body or fluid

Abstract

An apparatus and method for measuring hydrogen peroxide concentration in water to an accuracy of 0.1 ppm comprises a colorimetric assay method to determine hydrogen peroxide concentration. The assay is monitored spectophotometrically at a desired wavelength. Each sample is corrected relative to a control sample and hydrogen peroxide concentration determined with respect to a standard curve.

IPC Classes  ?

• G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
• G01N 31/22 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods using chemical indicators
• G01N 33/18 - Water