Process for removal of copper ions from aqueous effluent

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

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75726, 204150, 210719, 210724, 210737, 210912, C02F 162

Patent

active

051338734

ABSTRACT:
This invention relates to a process for removing copper ions from highly acidic waste water generated during the manufacture of dyes or pigments or intermediates thereof. The waste water is exposed at a pH less than about 1 to a bed of suspended iron particles, preferably a fluidized bed of iron particles, having a particle size of from about 200 to about 950 micrometers.

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