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Anaerobic-anoxic-hypoxic integrated reactor and application thereof

A reactor and sewage reactor technology, applied in anaerobic digestion treatment, chemical instruments and methods, aerobic and anaerobic process treatment, etc., can solve the problem of insufficient carbon source, poor simultaneous removal of nitrogen and phosphorus, and high energy consumption problems, to achieve the effect of saving pharmaceutical costs, saving floor space, and alleviating the contradiction of matrix competition

Inactive Publication Date: 2010-07-07
HOHAI UNIV +1
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Problems solved by technology

[0007] In order to solve the traditional A 2 There are problems such as poor nitrogen and phosphorus synchronous removal effect, insufficient carbon source and high energy consumption in the operation of the O reactor. The present invention provides an improved anaerobic-anoxic-hypoxic integrated A 2 O reactor, this method effectively combines the anaerobic zone, anoxic zone, aeration zone, degassing zone and sedimentation zone into one, saving the floor space

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  • Anaerobic-anoxic-hypoxic integrated reactor and application thereof
  • Anaerobic-anoxic-hypoxic integrated reactor and application thereof
  • Anaerobic-anoxic-hypoxic integrated reactor and application thereof

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specific Embodiment approach 2

[0045] Specific embodiment 2: Taking the effluent from the primary sedimentation tank of Wuxi Lucun Wastewater Treatment Plant Phase I as the treatment object (the water quality index is shown in Table 2), using the treatment method of specific embodiment 1, the effluent TN is 7.14-16.33mg L -1 , average 10.59mg·L -1 , the removal rate was 53.67%-92.19%, and the average removal rate was 75.63%. Effluent NH 3 -N is 0.08~7.70mg·L -1 , average 2.17mg·L -1 , the removal rate was 75.98% to 99.64%, and the average removal rate was 94.91%. Effluent TP is 0.22~0.60mg·L -1 , average 0.39mg·L -1 , the removal rate was 83.69% to 98.46%, and the average removal rate was 92.90%. Effluent COD is 12.00~53.10mg·L -1 , average 34.30mg·L -1 , the removal rate is 80.73% to 94.11%, the average removal rate is 88.38%, and the first-class A compliance rate is 98.45%.

[0046] Table 2 Statistical table of effluent water quality of Wuxi Lucun Wastewater Treatment Plant Phase I Primary Settli...

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Abstract

The invention relates to the field of environmental protection and sewage treatment, in particular to an anaerobic-anoxic-hypoxic integrated reactor. The anaerobic-anoxic-hypoxic integrated reactor is characterized in that: the anaerobic-anoxic-hypoxic integrated reactor comprises an anaerobic zone (3), an anoxic zone (4), a hypoxic aeration zone (5), a degasification zone (6), a sedimentation zone (7), a water inlet pipe (1), a sludge removing pipe (13) and a water outlet pipe (17); the anaerobic zone (3), the anoxic zone (4), the hypoxic aeration zone (5), the degasification zone (6) and the sedimentation zone (7) are sequentially arranged along the direction of water flow and are communicated by underwater holes; the sedimentation zone (7) is provided with the sludge removing pipe (13) and the water outlet pipe (17); as a water distribution tank (2) is provided, the proportion of sewage entering the anaerobic zone (3) and the anoxic zone (4) can be flexibly adjusted; in addition, a movable zone partition plate (20) is provided and can adjust the volume as well as functional location of the anaerobic zone (3) and the anoxic zone (4). The invention can effectively solve the problems of poor effect of synchronously removing nitrogen and phosphorus, insufficient carbon sources, high energy consumption and the like during the running of the traditional A2O reactor.

Description

technical field [0001] The invention relates to the fields of environmental protection and sewage treatment, in particular to an anaerobic-anoxic-hypoxic integrated energy-saving reactor. Background technique [0002] Anaerobic-Anoxic-Aerobic (A 2 O) The reactor is widely used in the existing urban sewage treatment plants in my country due to its simple structure, short total hydraulic retention time, small control complexity, and not easy to produce sludge bulking. But the traditional A 2 The O reactor has some disadvantages such as substrate competition, sludge age contradiction, and difficulty in improving the total nitrogen removal rate. Technologies such as short-cut nitrification and denitrification, simultaneous nitrification and denitrification, and denitrification for phosphorus removal can effectively alleviate A 2 Inherent contradiction of the O reactor. Inverted A 2 O mode (anoxic-anaerobic-aerobic) is also an effective measure to solve the above problems. ...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/12C02F3/28
CPCY02W10/10
Inventor 操家顺蔡健明周碧波白王军方芳赵静
Owner HOHAI UNIV
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