Two step removal of metal ions from effluents

Details Two step removal of metal ions from effluents Two step removal of metal ions from effluents

1979-06-18

1981-03-17

Castel, Benoit

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210702, 210913, C02F 152

Patent

active

042565774

ABSTRACT:
Almost complete elimination of metal ions in aqueous effluents can be effected by treating said effluent with a base and then adding amorphous, hydrated magnesium silicate. This sequential process allows metal ion concentration to be reduced to less than 0.1 part per million while using a fairly small amount of amorphous hydrated magnesium silicate.

REFERENCES:
patent: 3575854 (1971-04-01), Richards
patent: 3755183 (1973-08-01), Fahn et al.
patent: 3766036 (1973-10-01), McKaveney
patent: 3928195 (1975-12-01), Hoeltgen et al.
patent: 4012320 (1977-03-01), Conner et al.

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