Process for removing heavy metals from soil

Details Process for removing heavy metals from soil Process for removing heavy metals from soil

B - Operations, Transporting

09

B

B09B 3/00 (2006.01) B03B 5/00 (2006.01) B09C 1/02 (2006.01) B09C 1/10 (2006.01) C22B 1/00 (2006.01) C22B 3/00 (2006.01) C22B 3/06 (2006.01) C22B 3/16 (2006.01) C22B 3/46 (2006.01) C22B 7/00 (2006.01) C22B 15/00 (2006.01) C22B 25/06 (2006.01) C22B 43/00 (2006.01)

Patent

CA 2119021

2119021 9306952 PCTABS00021 Heavy metals are efficiently removed from contaminated soil by a process which comprises leaching or washing the soil with a mild leachant solution comprised of an aqueous solution of an acid and a salt. Heavy metals are also efficiently removed from paint chips by washing with an aqueous acid. The heavy metals are recovered from the leachant by cementation.

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