Water clarification

Details Water clarification Water clarification

1989-03-23

1990-04-10

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210748, 210917, 204134, 204149, C02F 146

Patent

active

049158465

ABSTRACT:
A water clarification apparatus (10) and method for removing dye and other organic matter from waste water within a dye lagoon (11) or other reservoir. The water clarification apparatus (10) comprises at least one first electrode (12) for being immersed in the waste water (32) within the reservoir (11), and at least one second electrode (14) for being immersed in the waste water (32) at a preselected distance from the first electrode (12). The apparatus further comprises a DC power supply means (20) to which the first and second electrodes are connected such that the first electrode defines an anode (12) and the second electrode defines a cathode (14). In accordance with the method of the present invention, the power supply means (20) is utilized to energize the anode (12) such that electrical current passes through the waste water (32) from the first electrode, or anode (12) to the second electrode, or cathode (14), causing the dye in the waste water (32) to coagulate into a precipitatable solid which can be readily removed from the waste water by conventional sewage treatment means.

REFERENCES:
patent: 3035992 (1962-08-01), Hougen
patent: 3414497 (1968-12-01), Kanai
patent: 3600286 (1971-08-01), Sabins
patent: 3664951 (1972-05-01), Armstrong
patent: 3915820 (1975-10-01), Ito et al.
patent: 4163716 (1979-08-01), Turnbull
patent: 4786384 (1988-11-01), Gerhardt et al.
"Dewatering and Densification of Coal Waste by Direct Current Laboratory Tests", Sprute et al, U.S. Bureau of Mines, 1976.

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