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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 increasing connecting pipelines or hydraulic equipment, difficult to reduce construction investment or operating costs, etc., to reduce operating costs, save carbon sources, and process processes. smooth effect

Active Publication Date: 2012-07-18
中国市政工程西北设计研究院天津分院
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  • Abstract
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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] Below in conjunction with the preferred embodiments, the specific implementation provided according to the present invention is described in detail as follows: See the accompanying drawings for details, a multi-stage anaerobic anoxic aerobic biological reaction tank, including an anaerobic tank, an anoxic tank and An aerobic tank is a single-stage anaerobic-anoxic-aerobic biological reaction tank arranged in the order of anaerobic-anoxic-aerobic and interconnected, and the single-stage anaerobic-anoxic-aerobic biological reaction tank is connected along the direction of water flow M-level anaerobic-anoxic-aerobic biological reaction tanks, the first to (M-1) level aerobic tanks are respectively equipped with anoxic diversion ports, and the anoxic diversion ports are provided with shunt adjustment devices ; The tail end of the anoxic pool of this level is communicated with the head end of the aerobic pool of this level through the anoxic diversion port, and the tail end o...

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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 pool in the field of sewage treatment, in particular to a multi-stage anaerobic-anoxic-aerobic biological reaction pool. Background technique [0002] At present, the activated sludge process in urban sewage treatment is almost all realized based on the "anaerobic, anoxic, aerobic" growth and metabolism theory of organisms, that is, organic matter, nitrogen, phosphorus and other pollutants in sewage 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 anoxic aerobic (MAO) process, which is modified on the basis of the O process, uses the organic matter in the sewage as the carbon source, maximizes the denitrification ability of microorganisms, and adapts to the characteristics of the current low carbon / nitrogen ratio of urban sewage , but its disadvantage is that the effect of biol...

Claims

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Application Information

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Patent Type & Authority Applications(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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