A kind of urban sewage treatment system and its treatment method
A sewage treatment method and technology of sewage treatment system, which are applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of not meeting the sewage discharge standards of urban sewage treatment plants, etc. Achieve the effect of removing high volume load, reducing floor space and reducing sludge production
Inactive Publication Date: 2017-08-01
北京泰昌科睿环保科技有限公司
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However, since Anammox (ANAMMOX) can only perform high-efficiency denitrification and cannot meet the sewage discharge standards of urban sewage treatment plants, it is necessary to add the main link of phosphorus removal
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[0027] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0028] Such as Figure 1-2 As shown, a kind of urban sewage treatment system provided by the present invention is specifically described, including the first anaerobic pond 3, the aerobic pond 27, the first sedimentation pond 24, the first anaerobic pond 24, the first Two anaerobic tanks 21 and the second settling tank 18, the aerobic tank 27 is provided with a biological turntable 8 and an aerator 28, and the second anaerobic tank 21 is provided with a three-dimensional elastic material 13, a temperature controller 20 And heating belt 22, the top of described second anaerobic tank 21 is provided with NaHCO 3 Solution storage tank 14, the pipeline between the second anaerobic tank 21 and the second sedimentation tank 18 is provided with Al 2 (SO4) 3 Solution storage tank 5, the inlet pipe 1 of the first anaerobic tank 3 is provi...
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Abstract
The invention relates to the technical field of urban sewage, in particular to an urban sewage treatment system and a treatment method thereof. The invention provides an urban sewage treatment system, comprising a first anaerobic pond, an aerobic pond, a first sedimentation pond, a second anaerobic pond and a second sedimentation pond connected in sequence, and the aerobic pond is provided with a biological turntable and an aeration pond. The second anaerobic tank is equipped with a three-dimensional elastic material, a temperature controller and a heating belt, and the second anaerobic tank is equipped with NaHCO 3 Solution storage tank, Al is provided between the second anaerobic tank and the second sedimentation tank 2 (SO 4 ) 3 Solution storage tank, the present invention is also provided with a first sludge return branch, a second sludge return branch and a sewage diversion branch, the first sludge return branch and the second sludge return branch are respectively provided with sludge outlet. The invention can reduce the amount of aeration, reduce the energy consumption, no emission of carbon dioxide greenhouse gas, reduce the amount of sludge produced by the anammox bacteria, realize the high volume load of TN removal and reduce the occupied area.
Description
technical field [0001] The invention relates to the technical field of urban sewage, in particular to an urban sewage treatment system and a treatment method thereof. Background technique [0002] In recent years, the frequency of eutrophication in closed water bodies (lakes, reservoirs) has increased significantly. In the past 40 years from the 1970s to the present, the eutrophication area of lakes in the country has increased by about 60 times, reaching about 8700km2. Nitrogen pollution The resulting environmental problems have attracted people's attention day by day, and the biological denitrification treatment of wastewater has become one of the hot issues in the research of wastewater treatment. The traditional biological denitrification treatment technology based on the mechanism of nitrification and denitrification has disadvantages such as long reaction process, large floor area, and large oxygen consumption. Many researchers are trying to find new and efficient ni...
Claims
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IPC IPC(8): C02F9/14
Inventor左龙叶正芳张源凯刘国华邱元晨
Owner北京泰昌科睿环保科技有限公司