VERWENDUNG EINES MITTELS WELCHES EIN PHOSPHAT, EIN CARBONAT UND EIN SILICAT ENTHÄLLT FÜR DIE ENTFERNUNG VON SCHWERMETALLEN AUS ABWÄSSERN

摘要

The invention concerns an agent for eliminating heavy metals contained in an aqueous effluent comprising: an alkaline metal silicate, an alkaline metal carbonate; a phosphate compound, for example a sodium orthophosphate: and optionally a carrier, in particular a clay. Said agent may further contain a sulphur compound. Said agent can constitute an agent stabilizing said metals, and can be used for eliminating or stabilizing heavy metals, in particular cadmium, nickel and lead, contained in industrial aqueous effluents.