| 摘要 |
The invention concerns a method for reducing production of urban or industrial waste water treatment station sludge with fixed biological cultures. The invention is characterized in that it consists in: dissociating the step of reducing sludge production from the purifying step, by providing a step of activated sludge type biological treatment with low, medium or high load, associated with a sludge production reducing step by thermophilic enzymatic process, or by partial ozone oxidation combined, with mechanical stirring, the substrate source for the biological treatment bacteria consisting of the organic matter derived from lyzed bacterial cells induced during the sludge production reducing step.
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