Biological denitrifying method for waste water
专利汇可以提供Biological denitrifying method for waste water专利检索，专利查询，专利分析的服务。并且PURPOSE: To conduct denitrifying tratment effectively by a method wherein a denitrifying process is divided into at least two processes, oxidation nitrogen is partially removed by controlling the quantity of a carbon source injected in one process, and residual oxidation nitrogen is removed by injecting the carbon source in the other process.
CONSTITUTION: The waste water 1 is nitrated by a nitrating process 2, and introduced to one denitrifying process 4, about 10W20% oxidation nitrogen is removed here by setting the quantity of an organic carbon source (methanol) injected to zero or quantity insufficient to the breeding of denitrifying bacteria, the waste water is introduced to the other denitrifying process 5, and residual oxidation nitrogen is removed here by injecting the organic carbon source. These operation is alternately exchanged. The change-over is conducted by a timer, and the variation of the height of a layer of media formed by the increase and decrease of the denitrifying bacteria is detected when the denitrifying processes are conducted by granular media.
COPYRIGHT: (C)1981,JPO&Japio，下面是Biological denitrifying method for waste water专利的具体信息内容。
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