Colloid free precipitation of heavy metal sulfides

Details Colloid free precipitation of heavy metal sulfides Colloid free precipitation of heavy metal sulfides

1977-05-23

1978-07-25

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 53, C02B 120

Patent

active

041027841

ABSTRACT:
In an aqueous solution heavy metal pollutant ions are removed as a precipitate formed by adding an insoluble slurry of a metal sulfide salt. The supernatant liquid is free of colloids.

REFERENCES:
patent: 3474033 (1969-10-01), Stout et al.
patent: 3740331 (1973-06-01), Anderson et al.

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