Liquid purification or separation – Processes – Chemical treatment
Patent
1994-03-25
1994-11-08
McCarthy, Neil
Liquid purification or separation
Processes
Chemical treatment
210908, 210909, 588206, C02F 170
Patent
active
053624025
ABSTRACT:
A process for significantly improving the rate of dehalogenation of aqueous compositions contaminated with halogenated hydrocarbon compounds is disclosed. The process involves admixing the contaminated aqueous composition with metallic iron in the presence of citric acid both in-situ and ex-situ. The use of citric acid as an additive in the reaction substantially increases the rate of iron-induced dechlorination of chlorinated hydrocarbons, such as trichloroethylene.
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patent: 5051030 (1991-09-01), Saha et al.
patent: 5093011 (1992-03-01), Friedman et al.
patent: 5096600 (1992-03-01), Hoch
patent: 5273657 (1993-12-01), Nakashima et al.
Baghel Sunita S.
Haitko Deborah A.
Mackenzie Patricia D.
General Electric Company
Magee Jr. James
McCarthy Neil
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