Method of treating discharge water from preparation plants...

Details Method of treating discharge water from preparation plants... Method of treating discharge water from preparation plants...

C - Chemistry, Metallurgy

22

B

53/205

C22B 60/00 (2006.01) C02F 9/00 (2006.01) G21F 9/04 (2006.01)

Patent

CA 1053912

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the treatment of radioactively contaminated waste water emitted from an installation for chemically preparing uranium ore. The improvement comprising the steps of evaporating the waste water to increase its concentration, crystallizing an inorganic salt from the resulting concen- trated solution, separating the crystallized salt from the mother liquor, returning the mother liquor to the installation and feeding condensate distilled from the waste water during the evaporating step back to the installation to provide fresh water for use in the ore treatment.

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