Method of treating waste water

Details Method of treating waste water Method of treating waste water

1989-05-10

1991-01-01

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210727, 210734, C02F 154

Patent

active

049815997

ABSTRACT:
A method for treating industrial waste water prior to its discharge into the city or county sewer system is provided. The method includes introducing into the waste water an iron-containing compound, a hydroxide and a flocculating agent. This method results in the formation of a sludge cake layer on top of the waste water. The sludge cake is then removed, and the treated waste water is discharged into the sewer system.

REFERENCES:
patent: 3677940 (1972-07-01), Fujimoto et al.
patent: 3738933 (1973-06-01), Hollo et al.
patent: 3846293 (1974-11-01), Campbell
patent: 4013555 (1977-03-01), Davis
patent: 4061568 (1977-12-01), Hall
patent: 4173532 (1979-11-01), Keoteklian
patent: 4790943 (1988-12-01), Dunn et al.

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