Water treating apparatus
专利汇可以提供Water treating apparatus专利检索，专利查询，专利分析的服务。并且PURPOSE: To perform nitration and denitrification at high rate and to satisfy the quality of water for standard of final effluent by providing a first circulation line connecting a nitration tank to a first denitrification tank and a second circulation line connecting a reaeration tank to a second denitrification tank.
CONSTITUTION: In a first denitrification tank 11, remaining BOD component is further removed biologically, and contained nitrate nitrogen is reduced simultaneously biologically to gaseous N
2 and denitrified. Since generated OH ion in the denitrification stage is useful as a part of alkali for the nitration in the denitration tank 12, necessary amt. of alkali to be added to the nitration tank 12 is correspondingly reduced. Alcohol A is added to the treated water as replenishing carbon source for microorganism in the second denitrification tank 13, and mixed by stirring with a stirrer 13A, and nitrate nitrogen in the treated water is reduced biologically to gaseous N
2 and denitrificaton is attained.
COPYRIGHT: (C)1985,JPO&Japio，下面是Water treating apparatus专利的具体信息内容。
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