Cracking process chemicals degradation compositions and chemicals using the same

摘要

PROBLEM TO BE SOLVED: To provide a chemical substance decomposition agent composition having high decomposition efficiency on a chemical substance such as trichloroethylene and maintaining the decomposing ability for a long period of time without consuming a persulfate in a short time.SOLUTION: The chemical substance decomposition agent composition contains, in one mol of a persulfate, 0.1 to 1 mol of divalent or trivalent iron ion and 0.005 to 0.1 mol of ascorbic acid. By bringing the chemical substance decomposition agent composition into contact with soil or water contaminated with a chemical substance, the chemical substance can be efficiently decomposed.