Treatment for waste water
专利汇可以提供Treatment for waste water专利检索，专利查询，专利分析的服务。并且PURPOSE: To make the nitrogen load in a denitrifying zone in an inorg. condition uniform and to improve the effect of denitrification by separating said zone to ≥2 blocks which are connected in series and feeding internal circulating liquid distributively into the respective blocks.
CONSTITUTION: Inflow waste water contg. BOD is fed through a pipe 1 distributively into three blocks 10W12 constituting an anaerobic zone A and is agitated and mixed with the activated sludge returned from a settling zone D through pipes 4, 2. The mixture from the zone A is transferred into a denitrifying zone B where an oxygen-free state is maintained by the gaseous introgen introduced from the bottom part through a pipe 5. The mixture introduced into the zone B partitioned to three blocks 13W15 is agitated in contact with the internal circulating liquid recirculated from an aerobic zone C through a pipe 6. The zone C is divided to blocks 16W19 and the mixture is aerated in the respective blocks.
COPYRIGHT: (C)1983,JPO&Japio，下面是Treatment for waste water专利的具体信息内容。
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