stage for heavy metal cations, which is a component of type silicates and aluminium silicates and carbonates containing a component of type

摘要

PCT No. PCT/FR95/00557 Sec. 371 Date May 20, 1997 Sec. 102(e) Date May 20, 1997 PCT Filed Apr. 28, 1995 PCT Pub. No. WO95/29875 PCT Pub. Date Nov. 9, 1995An agent for recovering heavy metal cations from an aqueous effluent, including a silicate or aluminosilicate type compound, e.g. an alkali metal silicate or aluminosilicate, and a carbonate type compound, e.g. an alkali metal carbonate, and preferably a carrier such as a lay. The agent may also form a cation stabilizer. Said agent is useful for removing or stabilizing heavy metal cations in the water used for cleaning flue gases from waste incineration, particularly household refuse and industrial waste incineration.