Method for volume reduction of low activity organic wastes from

Details Method for volume reduction of low activity organic wastes from Method for volume reduction of low activity organic wastes from

1988-03-25

1989-08-29

Locker, Howard J.

Compositions

Radioactive compositions

Nuclear reactor fuel

48197FM, 48197A, 71 10, 71 12, 210603, 210605, 210610, 210611, 210612, 210630, 210751, 252626, 252628, 435262, 435801, 435822, C02F 328, C02F 300, G21F 912, G21F 900

Patent

active

048615196

ABSTRACT:
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 removed, concentrated and packed in barrels or the like for storage.

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patent: 4678582 (1987-07-01), Lavigne
patent: 4758344 (1988-07-01), Wildenauer

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