C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/3
C02F 3/28 (2006.01) G21F 9/18 (2006.01)
Patent
CA 1329278
ABSTRACT OF THE DISCLOSURE The invention relates to a method and apparatus for the reduction in the quantity of low activity organic wastes from nuclear power plants. This is accomplished using anaerobic fermentation in a bioreactor. The waste from the nuclear power plant is subjected to a pretreatment such as comminution and suspension, hydrolysis and/or physical dispersion, such as by a irradiation, heat treatment or the equivalent. The pretreated waste is subjected to anaerobic decomposition in a bioreactor, the anaerobic decomposition taking place in two stages, namely an acid stage and a methane stage. The gases produced in the decomposition process are conducted from the methane stage to a gas burning stage and the undecomposed waste is remove, concentrated and packed in barrels or the like for storage.
563385
Maatta Raimo
Ruuskanen Antti
Tusa Esko
Imatran Voima Oy
Marks & Clerk
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