HEAVY METAL ELUTION PREVENTIVE AGENT AND METHOD FOR TREATING HEAVY METAL-CONTAINING WASTE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a heavy metal elution preventive agent for effectively and stably fixing heavy metals in a heavy metal-containing waste and preventing elution of the heavy metals, and a method for treating the heavy metal- containing waste using the same. SOLUTION: 1) A heavy metal elution preventive agent comprises sulfer A, alkali metal compound B and water C; 2) a heavy metal elution preventive agent comprises a reaction mixture of the sulfur A with the alkali metal compound B and the water C; 3) a heavy metal elution preventive agent is a reaction mixture of the sulfur A with the alkali metal compound and having 0.2-2.5 in the mol ratio of the component B to the component A; and 4) a method for treating a heavy metal-containing waste comprises the steps of adding the heavy metal elution preventive agent to the heavy metal-contained waste, adjusting the water content and them kneading the same as occasion demands.