Waste water treatment

Details Waste water treatment Waste water treatment

1986-02-27

1987-11-10

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

106117, 210721, 210738, 210909, 210912, 210913, 210914, C02F 152

Patent

active

047056380

ABSTRACT:
A method of treating wastewater containing a contaminant selected from the group consisting of heavy metal cations, tars, oils and phenols or mixtures thereof, comprising mixing said wastewater with an effective amount of desulfurization slag, the composition of said slag including calcium oxide, calcium sulfide and iron oxides, causing deposition of said contaminant from the mixture, and separating the deposit from the supernatant liquid.

REFERENCES:
patent: 2746920 (1958-05-01), Wundeley
patent: 3326669 (1967-06-01), Stirling
patent: 3920795 (1975-11-01), Selmeczi et al.
patent: 4124405 (1978-11-01), Quienot
patent: 4213779 (1980-07-01), Caswell
patent: 4219418 (1980-08-01), Pilon
patent: 4229295 (1980-10-01), Krofchak
patent: 4377483 (1983-03-01), Yamashita et al.
patent: 4404105 (1983-09-01), de Lockerente et al.

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