Controlling method for biological denitrification process
专利汇可以提供Controlling method for biological denitrification process专利检索，专利查询，专利分析的服务。并且PURPOSE: To appropriately supply an organic carbon source and enhance treating efficiency, by providing a nitrification tank for oxidizing nitrogen compound and a denitrification tank which is provided at its head part with a supplying means of organic carbon source and a detecting means for the flow rates of inflows of waste water and a nitration liquid or the like.
CONSTITUTION: Feed water 5 containing ammonia nitrogen (NH
3 -N) and a return sludge 7 containing nitrifying bacteria and denitrifying bacteria are fed into the nitrification tank 1, in which ammonia nitrogen is converted to NO
x -N. The nitrified liquid 6 containing NO
x -N and the denitrifying bacteria is supplied into the head part of the denitrification tank 2. The supply of organic carbon source which functions as a reducing agent is conducted at two different positions. The first pouring pipe 8 is located at the head part of the tank 2, while the second pouring pipe 9 is located on the downstream side of the pipe 8, and the quantities of organic carbon source supplied through the pipes 8, 9 are adjusted respectively by supplying devices 11, 12. Accordingly, the organic carbon source can be supplied in accordance with a nitrogen load quantity without need to use any means for directly measuring NO
x -N.
COPYRIGHT: (C)1983,JPO&Japio，下面是Controlling method for biological denitrification process专利的具体信息内容。
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