Water treatment control system for minimizing trihalomethane...

Details Water treatment control system for minimizing trihalomethane... Water treatment control system for minimizing trihalomethane...

2006-03-21

2006-03-21

Cecil, Terry K. (Department: 1723)

Liquid purification or separation

Constituent mixture variation responsive

C210S105000, C210S199000, C210S202000, C210S205000, C210S908000

Reexamination Certificate

active

07014752

ABSTRACT:
A water treatment control system for minimizing trihalomethane formation includes chlorine injection equipment having a plurality of chlorine injectors (11d,12, 13), a fluorescence analyzer7provided on the upstream of the chlorine injectors, and a water flowmeter6.An chlorine injection rate necessary to reduce a trihalomethane formation potential is calculated by a chlorine injection rate calculating apparatus14abased on a measured value from the fluorescence analyzer7.An chlorine injection amount from the chlorine injectors is controlled by chlorine injection amount control apparatuses15a–15cbased on the chlorine injection rate and a measured value from the flowing water flowmeter6.

REFERENCES:
patent: 4549966 (1985-10-01), Beall
patent: 4-225896 (1992-08-01), None
patent: 06320166 (1994-11-01), None
patent: 10043776 (1998-02-01), None
patent: 3038926 (2000-03-01), None

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