Water treatment system

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C - Chemistry, Metallurgy

02

F

C02F 1/70 (2006.01) B09C 1/00 (2006.01) B09C 1/02 (2006.01) B09C 1/08 (2006.01) C02F 1/46 (2006.01) C02F 1/461 (2006.01) C02F 9/00 (2006.01)

Patent

CA 2187739

Treatment of halogenated hydrocarbon contaminants in groundwater is accomplished by passing the water through a bed of granular iron (43). An electrical circuit (47) is promoted for providing electrons for reducing the contaminant. The circuit may be made using a DC supply, by configuring an electrolytic circuit, or by providing a layer of a second metal such as zinc placed next to the iron bed, thereby creating a galvenic circuit.

On procède au traitement des contaminants contenant des hydrocarbures halogénés présents dans des eaux souterraines en faisant passer ces eaux à travers un lit de granulés de fer (43). On active un circuit électrique (47) donneur d'électrons pour réduire ces contaminants. Ce circuit peut comporter une alimentation CC, être du type électrolytique ou comporter une couche d'un deuxième métal, tel que du zinc, placé à côté du lit contenant le fer, ce qui donne un circuit galvanique.

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