Disposition of organic waste water
专利汇可以提供Disposition of organic waste water专利检索，专利查询，专利分析的服务。并且PURPOSE: To remarkably improve a dewatering step of formed sludge, by aerating multiplied bacteria-contg. slurry or the like from a step for biologically treating an ammonia-contg. organic waste liquid, adding a ferric flocculant to the slurry or the like, and then subjecting the slurry or the like to solid-liquid separation.
CONSTITUTION: Dehumidified crude night soil 1 is let flow into a biological nitrifying-denitrifying step 2, where BOD and nitrogen components are removed from the night soil by utilizing the BOD components in the crude night soil 1 as an organic carbon source for denitrifying bacteria in a manner such as a nitrified liquid-circulating type saving methanol addition, a stepwise crude night soil-inflow type or an aerobic denitrifying type involving mild aeration in a denitrifying vessel. A part 4 of a slurry effluent 3 from the biological nitrifying- denitrifying step is separated into conc. sludge 6, to be returned, and separated water 7 in a solid-liquid separating step 5 such as a centrifugal separator. The separated water 7 is mixed with the remainder 8 of the slurry effluent 3, and then aerated in an aerating vessel 10.
COPYRIGHT: (C)1983,JPO&Japio，下面是Disposition of organic waste water专利的具体信息内容。
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