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Multi-stage anaerobic anoxic aerobic biological reaction tank

A biological reaction pool, anoxic and aerobic technology, applied in the field of biological pools, can solve the problems of difficulty in reducing construction investment or operating costs, increase connecting pipelines or hydraulic equipment, etc., to save carbon sources, reduce operating costs, and hydraulic losses small effect

Active Publication Date: 2013-06-05
中国市政工程西北设计研究院天津分院
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  • Application Information

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Problems solved by technology

According to the water flow design concept of conventional bioreactors, in order to achieve the above goals, a large number of connecting pipelines or hydraulic equipment will inevitably be added, and it is difficult to reduce construction investment or operating costs

Method used

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  • Multi-stage anaerobic anoxic aerobic biological reaction tank
  • Multi-stage anaerobic anoxic aerobic biological reaction tank
  • Multi-stage anaerobic anoxic aerobic biological reaction tank

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Embodiment Construction

[0016] Hereinafter, in combination with preferred embodiments, the specific implementation manners provided in accordance with the present invention are described in detail as follows: For details, see the accompanying drawings, a multi-stage anaerobic anoxic aerobic biological reaction tank, including an anaerobic tank, an anoxic tank and A single-stage anaerobic, anoxic, and aerobic biological reaction tank arranged in the order of anaerobic-anoxic-aerobic in sequence and connected to each other, wherein the single-stage anaerobic, anoxic and aerobic biological reaction tanks are connected along the water flow direction. M-level anaerobic anoxic aerobic biological reaction tank, the first end of the first to (M-1) level aerobic tanks are respectively provided with anoxic diversion openings, and the hypoxia diversion openings are provided with a shunt regulating device ; The tail end of the current level of anoxic tank is connected to the head end of the current level of aerobi...

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Abstract

The invention relates to a multi-stage anaerobic anoxic aerobic biological reaction tank, which comprises an anaerobic tank, an anoxic tank and an aerobic tank which are arranged in the sequence of anaerobic, anoxic and aerobic and are mutually communicated, and the three tanks are respectively a single-stage anaerobic anoxic aerobic biological reaction tank. The multi-stage anaerobic anoxic aerobic biological reaction tank is characterized in that the single-stage anaerobic anoxic aerobic biological reaction tanks are connected in the water flow direction to form an M-stage anaerobic anoxic aerobic biological reaction tank. The multi-stage anaerobic anoxic aerobic biological reaction tank has the advantages of strictly executing the MAAO process flow idea, adjusting proportion of flow entering the anaerobic tank and the aerobic tank, achieving two process models with different reinforcing effects including multi-stage efficient denitrification in the mode of anoxic-aerobic-anoxic-aerobic... and multi-stage denitrification dephosphorization in the mode of anaerobic-anoxic-anaerobic-anoxic...

Description

Technical field [0001] The invention relates to a biological pond in the field of sewage treatment, in particular to a multi-stage anaerobic, anoxic and aerobic biological reaction pond. Background technique [0002] At present, the activated sludge process in urban sewage treatment is almost all based on the biological "anaerobic, anoxic, aerobic" growth and metabolism theory, that is, the organic matter, nitrogen, phosphorus and other pollutants in the sewage are in the biological pond. Under different environments, it can be removed through the growth and metabolism of microorganisms to achieve the purpose of purifying water. [0003] In traditional A 2 The multi-stage anaerobic and aerobic (MAO) process based on the O process uses organic matter in the sewage as a carbon source to maximize the denitrification capacity of microorganisms and adapt to the current characteristics of low carbon / nitrogen ratio of urban sewage , But its disadvantage is that the effect of biological p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 刘胜军孔令勇杨学张继伟黄宇
Owner 中国市政工程西北设计研究院天津分院
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