Treatment of mercury contaminated lakes

Details Treatment of mercury contaminated lakes Treatment of mercury contaminated lakes

C - Chemistry, Metallurgy

02

F

362/54

C02F 1/68 (2006.01) A01K 63/04 (2006.01) C02F 1/52 (2006.01) C02F 9/00 (2006.01)

Patent

CA 1323944

ABSTRACT The present invention relates to a method for treating lakes with selenium with the intention of lowering the mercury content of fish, and is charac- terized by supplying to the lake selenium in the form of a selenium salt incorporated in a carrier material capable of dispensing selenium to the surrounding water substantially continuously and in a controlled manner. The carrier material is preferably a rubber-based or silicon-based and biologically degradable material. There is preferably maintained an effective selenium level of beneath 10 µg.

547868

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