Denitrification/dephosphorization bioreactor and sewage treatment method with same

A biological reaction device and a technology for denitrification and phosphorus removal are applied in the field of biological reaction devices for denitrification and phosphorus removal, which can solve the problems of increasing the complexity of the device, increasing the investment cost of the equipment, and the energy consumption of the return flow, so as to save sludge collection equipment and save energy. Equipment, the effect of saving investment costs

Active Publication Date: 2012-12-19
深圳中水环境保护有限公司
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Problems solved by technology

However, in order to improve the effect of nitrogen and phosphorus removal, two methods are often used: one is to repeatedly set up multiple aerobic-anaerobic / anoxic reaction zones in the device, which increases the complexity of the device; the other The reflux equipment is used to recirculate the digestive fluid and sludge, which increases the investment cost of the equipment and the energy consumption of the reflux

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  • Denitrification/dephosphorization bioreactor and sewage treatment method with same
  • Denitrification/dephosphorization bioreactor and sewage treatment method with same

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings. The following embodiments are explanations of the present invention, and the present invention is not limited to the following embodiments.

[0032] Such as figure 1 and figure 2 As shown, it is a schematic structural diagram of the present invention. The nitrogen and phosphorus removal biological reaction device is a circular sleeve-shaped structure. Zone 2, Aerobic Zone 3 and Precipitation Zone 4. The upper part of the cylinder wall of the anaerobic zone 1 is evenly opened with 13 first water holes 5 along the perimeter, and the upper edge of the cylinder wall of the anoxic zone 2 is higher than the first water holes 5 and lower than the cylinder wall of the aerobic zone 3 On the upper edge, 19 second water holes 6 are evenly opened along the circumference in the lower part of the cylinder wall of the anoxic zone 2, and 19 second water holes 6 are evenly o...

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Abstract

The invention relates to sewage treatment, particularly a denitrification/dephosphorization bioreactor and a sewage treatment method with the same. The invention aims to provide a denitrification/dephosphorization bioreactor which has the advantages of low cost, low energy consumption, simple structure and good treatment effect. The denitrification/dephosphorization bioreactor comprises a water inlet pipe, an anaerobic zone, an anoxic zone, an aerobic zone, a settling zone and a water outlet pipe in the water body flow direction, wherein the anaerobic zone, anoxic zone, aerobic zone and settling zone are separated by zone walls; and each zone wall is provided with water through holes. The invention also aims to provide a sewage treatment method with the denitrification/dephosphorization bioreactor. By adopting the sludge self-reflux and air stripping hydraulic circulation mode, the invention saves the high-flow circulating pumps, thereby saving the investment cost as well as maintenance cost and power cost. Thus, the invention provides an ideal device for municipal domestic sewage treatment.

Description

technical field [0001] The invention relates to sewage treatment, in particular to a biological reaction device for nitrogen and phosphorus removal and a method for treating sewage with it. Background technique [0002] The biological denitrification process is generally divided into aerobic nitrification stage and anaerobic / anoxic denitrification stage. In the nitrification stage, NH in sewage 4 -N is converted to NO by microorganisms 2 - and NO 3 - ; During the denitrification stage, the NO in the sewage 2 - and NO 3 - Converted to N by microorganisms 2 . The biological phosphorus removal process is generally divided into an aerobic excess phosphorus uptake stage and anaerobic phosphorus release stage. It can be seen that the process of biological denitrification and dephosphorization of sewage requires an alternate environment of aerobic-anaerobic / anoxic. [0003] In order to realize the alternate environment of aerobic-anaerobic / anoxic, the existing nitrogen a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 余波平薛平吴三鑫
Owner 深圳中水环境保护有限公司
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