Biological nitrification-denitrification device
专利汇可以提供Biological nitrification-denitrification device专利检索，专利查询，专利分析的服务。并且PURPOSE: To eliminate the need of a nitrifying liquid circulating pump and a pulverulent solid material separation part of a denitrification part on the titled device, by sectioning a processing tank to a nitrification part and denitrification part adjoining to each other interfacing a communicated opening part fitted with an inclined board.
CONSTITUTION: Original water containing BOD and NH
4 -N flows into denitrification part 5, where NO
x -N in a nitrification liquid flowing via opening part 12 is reduced into N
2 by denitrifying bacteria sticking to internal pulverulent solid matter 2 or floating. In this case, inside pulverulent solid matter 2 is suspended and flowed by supplying N
2 collected in chamber 7 to draft tube 6 via piping 13 and blower 8. The denitrifying liquid flows down from opening 12 to nitrification part 1 naturally and nitrification is carried out by the inside nitrifying bacteria in the same state as above by making use of oxygen in the air supplied via air lift pipe 3. The sufficiently processed liquid has solid matter 2 separated by sedimentation separation part 4 and is discharged. Because of the arrangement of inclined boards 9 and 9', the liquid is circulated and mixed with an extremely high efficiency.
COPYRIGHT: (C)1981,JPO&Japio，下面是Biological nitrification-denitrification device专利的具体信息内容。
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