System for controlling coagulant treatment based on monitoring o

Details System for controlling coagulant treatment based on monitoring o System for controlling coagulant treatment based on monitoring o

1991-06-21

1992-11-03

Dawson, Robert A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210 86, 210 961, 2101981, 210745, 210746, 364502, C02F 152, B01D 2130

Patent

active

051604396

ABSTRACT:
A system is disclosed for controlling the amount of treatment composition, e.g., cationic coagulant, to be introduced into an aqueous medium, e.g., a laundry waste water, having a content of fats, oils and/or grease (FOG) which is to be reduced. This system comprises a plurality of detectors each of which is adapted to determine a parameter, other than the FOG level, of a material comprising the components of the aqueous medium and to provide a determined signal indicative of the determined parameter; and an automatic processor provided with a relationship of the amount of treatment composition to be introduced into the aqueous medium to reduce the FOG of the aqueous medium to a given level as a function of the plurality of determined signals, and adapted to receive the plurality of determined signals and to provide a control signal to a source of treatment composition to control the amount of treatment composition introduced from the source of treatment composition into the aqueous medium.

REFERENCES:
patent: 3595393 (1971-07-01), Messa
patent: 3605775 (1971-09-01), Zaander et al.
patent: 4219417 (1980-08-01), Ramirez
patent: 4855061 (1989-08-01), Martin
patent: 4882069 (1989-11-01), Pohoreski
patent: 5084186 (1992-01-01), Gilchrist
Article in Publication, "An On-Line Monitor for Flocculation Control" by Brown et al., pp. 239-245, publication date and name of publication unknown.

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