Method for removing metal compounds from waste water

Details Method for removing metal compounds from waste water Method for removing metal compounds from waste water

1993-05-25

1994-12-06

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210721, 210722, 210725, 210727, 210738, 210747, 210911, 210912, 210913, C02F 156

Patent

active

053708008

ABSTRACT:
A method for removing metal compounds from waste water comprising the steps of adjusting the pH of the water to from 5 to 12 and preferably 6 to 9; aerating the waste water; adding a flocculating agent to the water and allowing floccules including metal compounds to form; and separating said floccules including metal compounds from the water. An apparatus for carrying out this method is also disclosed.

REFERENCES:
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patent: 4632758 (1986-12-01), Whittle
patent: 4724084 (1988-02-01), Pahmeier et al.
patent: 4749497 (1988-06-01), Kanzleiter et al.
patent: 4758353 (1988-07-01), Spence et al.
patent: 4814091 (1989-03-01), Napier et al.
patent: 5013453 (1991-05-01), Walker

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