System and method for reducing deionized water consumption

Details System and method for reducing deionized water consumption System and method for reducing deionized water consumption

2007-08-21

2007-08-21

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S764000, C210S765000, C210S766000, C210S652000, C210S681000, C210S900000, C392S466000

Reexamination Certificate

active

10940249

ABSTRACT:
A system and method are provided for reducing DI water consumption by delivering the DI water at an elevated processing temperature when demanded. The DI water is passed through a heater for heating the DI water to a processing temperature in a single pass. The DI water is circulated through a recirculation loop, including the heater, until demanded. The DI water is monitored for contaminants and bubbles or voids. Detected contaminants or voids are discharged through vents of the system. Turbulence or biocides can be introduced into the recirculated DI water for inhibiting biological contamination.

REFERENCES:
patent: 3870033 (1975-03-01), Faylor et al.
patent: 4835365 (1989-05-01), Ethridge
patent: 5784531 (1998-07-01), Mann et al.
patent: 5930458 (1999-07-01), Yane et al.
patent: 2398976 (1979-03-01), None

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