A HEAVY METAL CHELATE COMPOSITION CONTAINING CHITOSAN DERIVATIVES AND USES THEREOF

摘要

The invention provides a heavy metal chelate composition, which contains 1-100wt% of chitosan derivatives with at least of one dithioc acid group, and 0-99wt% of polyamine derivatives with at least of one dithioc acid group. The heavy metal chelate composition applies to the processing for the waste water and the mud which contains the heavy metal ions, the flying ash caused by burning away the refuse, or the soil polluted by the heavy metal ions.