Fremgangsmåde til biologisk behandling af spildevand under intermitterende beluftning og system til brug ved fremgangsmåden
The present invention is concerned with an intermittent aeration type biological treatment process, wherein waste water is caused to flow into an aeration tank, and an aeration step and a stop of aeration step are alternately repeated in the aeration tank so as to treat the waste water and a system...
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