A method of decontaminating a cementitious surface

Details A method of decontaminating a cementitious surface A method of decontaminating a cementitious surface

C - Chemistry, Metallurgy

12

S

C12S 9/00 (2006.01) G21F 9/00 (2006.01) G21F 9/28 (2006.01)

Patent

CA 2080874

A cementitious surface contaminated with a radioactive substance is decontaminated by applying a micro-organism to the surface to degrade the surface. The residue which contains the radioactive substance is then removed by suction, scraping, brushing or abrasion blasting. The micro-organism might comprise an aerobic sulphur oxidising bacteria, or an anaerobic sulphate reducing bacteria, or a mixture thereof. Action of the micro-organism can be stopped as necessary by heating, or by depriving the micro-organism of nutrients.

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