C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 17/40 (2006.01) B09C 1/08 (2006.01)
Patent
CA 2559331
A method and compositions using an aqueous solution of thiourea dioxide to treat a contaminated site to reduce hexavalent chromium to trivalent chromium and using a second solution of sodium hydroxide containing cationic polyacrylamide to form a relatively impermeable gel in the contaminated site thereby fixing chromium to the extent that there should be no detectable ground water contamination.
Li Meng J.
Li Meng J.
Na
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