B - Operations – Transporting – 09 – B
Patent
B - Operations, Transporting
09
B
B09B 3/00 (2006.01) B09C 1/00 (2006.01) B09C 1/02 (2006.01) B09C 1/08 (2006.01) C02F 9/00 (2006.01) G01N 21/31 (2006.01) G01N 33/18 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2094092
ABSTRACT OF THE DISCLOSURE A method for removing and stabilizing in-situ soluble heavy metal contaminants in land formations which comprises introducing into said formation an aqueous remediation solution comprising naturally-occurring ions present in said formation and remediation ions. The remediation solution selectively solubilizes and mobilizes the heavy metal contaminants into solution while substan- tially suppressing the displacement of said naturally- occurring ions from said formation. The method is effective with heavy metals which exist in both anionic and cationic form, and may be used to treat land formations below the surface to reduce soluble heavy metal contamination to a few parts per billion.
Grant David Charles
Lahoda Edward Jean
Bereskin & Parr
Westinghouse Electric Corporation
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