Ecolab USA Inc.

Peter A Voss

Terrence Phillip Everson

Mark Toetschinger

Li Wen

Lylien Tan

Mark Dennis Levitt

Terry James Klos

Toyin Alowonle

Sara Treder

Paul R Kraus

Paul Dominic Christian

Teresa C Podtburg

Kyle David Wood

Michael R Ney

An antimicrobial lighting system is used to reduce microbial growth on surfaces in or on air conditioning and/or heating equipment. In some examples, antimicrobial light within one or more antimicrobial wavelength ranges is applied to inactivate one or more microorganisms on target surface(s) within or on a packaged terminal air conditioner (PTAC). The antimicrobial light may include light within a first antimicrobial wavelength range and/or light within a second antimicrobial wavelength range. The antimicrobial lighting system may include an array of individually controllable antimicrobial light segments. An array controller may individually control activation of the one or more antimicrobial light segments based on the status information or commands received from a PTAC controller or from an external computing device.

Reducing microbial growth on packaged terminal air conditioners

A fluid treatment system is provided, comprising a capacitive deionization (CapDI) system for removing dissolved solids from a fluid. A controller is arranged in a closed feedback loop with the CapDI system to verify whether measured conductivity of the fluid corresponds to a set point conductivity value, and if the measured conductivity of the fluid does not correspond to the set point conductivity value, adjust the operation of the CapDI system to match the set point conductivity value. A pump selectively pressurizes the fluid such that purified fluid is at a pressure greater than line pressure of the fluid treatment system. An accumulator provided downstream of the CapDI system maintains the purified fluid at a pressure greater than the line pressure and intermittently delivers purified fluid to a use device. The purified fluid stored in the accumulator comprising chlorine and or chloramine so as to reduce microbial growth when stored in the accumulator.

Capacitive de-ionization mineral reduction system and method

Methods and systems for acid regeneration of ion exchange resins are disclosed. Acid resins designed for use in a variety of cleaning application using a water source use a treated, softened, acidic water source according to the invention. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

Method for using a softened acidic water source

Methods and systems for an integrated acid regeneration of ion exchange resins are disclosed for use in cleaning applications. Acid resins designed for use in a variety of cleaning application using a treated, softened, acidic water source are disclosed. Various methods of using the softened acidic water generated by acid regenerate-able ion exchange resins within a cleaning application, e.g. ware wash machine, are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

Urea sulfate and sodium chloride blend for regeneration of cation exchange resins

Integrated acid regeneration of ion exchange resins for industrial applications

Acid regeneration of ion exchange resins for industrial applications

System employing ion exchange resin regenerated by acid

Methods and systems for employing softened acidified water sources from an acid regenerated ion exchange resins are disclosed. Various methods of dispensing and/or using the softened acidic water generated by an acid regenerate-able ion exchange resin are disclosed to beneficially reduce spotting, filming and scale buildup on treated surfaces, reduce and/or eliminate the need for polymers, including water conditioning agents, threshold reagents and/or rinse aids, and using protons generated in the acidic water effluent for triggering events useful in various cleaning applications.

Treating hard water using an acid salt-regenerated ion exchange resin

Growing community of inventors

Eagan, MN, United States of America

Peter A Voss