HEAVY METAL TREATMENT AGENT AND STABLE TREATMENT METHOD FOR HEAVY METAL POLLUTANT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a treatment method for heavy metal pollutant which solves the problem that heavy metal elutes with pH fluctuation of a processed object in the conventional disposal method which sets the pH of eluate to 8-11 in the Environment Agency notification No.13 test for heavy metal pollutant in the year 1973.SOLUTION: When heavy metal pollutant is processed using a carbodithioate salt of an amine, the heavy metal can be processed with high efficiency and yet can be immobilized without the eluate of heavy metal with pH fluctuation of a processed object by using a metal hydroxide and a carbodithioate salt of an amine and by setting the pH of eluate to higher than 12 in the Environment Agency notification No.13 test for processed objects in the year 1973.