Synchronous denitrification and dephosphorization sewage treatment device for immobilized microorganism CASS (cyclic activated sludge system)

A technology for immobilizing microorganisms and simultaneous denitrification and phosphorus removal, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. The problems of low hydraulic shock load resistance and unstable dephosphorization and nitrogen removal effects have achieved the effect of improving shock resistance, increasing the number, and shortening the reaction time.

Inactive Publication Date: 2012-09-12
中山市子源生物环境科技有限公司
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Problems solved by technology

However, in the CASS process based on activated sludge, the microbial concentration is generally 1500-3000mg/L. Although the microbial concentration will increase with the increase of the influent load, after reaching a certain level, the serious loss will make it Unable to continue to increase, resulting in a long generation cycle of nitrifying bacteria is difficult to proliferate
In addition, when the water quantity and quality of sewage fluctuate greatly, the system's ability to resist hydraulic and concentra

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  • Synchronous denitrification and dephosphorization sewage treatment device for immobilized microorganism CASS (cyclic activated sludge system)
  • Synchronous denitrification and dephosphorization sewage treatment device for immobilized microorganism CASS (cyclic activated sludge system)
  • Synchronous denitrification and dephosphorization sewage treatment device for immobilized microorganism CASS (cyclic activated sludge system)

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[0025] The present invention will be further described below in conjunction with the description of the drawings and specific implementations:

[0026] Such as figure 1 with 2 The shown one kind of immobilized microorganism CASS synchronous denitrification and dephosphorization sewage treatment device includes a pool body 1, an inlet pipe 2 is arranged on one end of the pool body 1, and the other end of the pool body 1 is arranged The outlet pipe 3 is provided with a hollow grid reaction box 4 in the pool body 1, and an immobilized microbial carrier 5 is arranged in the hollow grid reaction box 4, and is provided on the bottom of the pool body 1. There are aeration devices6.

[0027] Such as figure 2 As shown, the hollow grid reaction box 4 of the present invention includes multiple grid plates 41, which are connected in turn to form a box body 42, on which an upper cover is hinged. An accommodating space is provided in the box 42 and the immobilized microorganism carrier 5 is a...

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Abstract

The invention discloses a synchronous denitrification and dephosphorization sewage treatment device for an immobilized microorganism CASS (cyclic activated sludge system). The synchronous denitrification and dephosphorization sewage treatment device comprises a pond. A water inlet tube is arranged at one end of the pond, a water outlet tube is arranged at the other end of the pond, a hollow gridding reaction box is disposed in the pond, immobilized microorganism carriers are arranged in the hollow gridding reaction box, and an aeration device is arranged at the bottom of the pond. The synchronous denitrification and dephosphorization sewage treatment device aims to overcome shortcomings in the prior art, is simple in structure, and is efficient and stable.

Description

technical field [0001] The invention relates to an immobilized microorganism CASS synchronous nitrogen and phosphorus removal sewage treatment device. Background technique [0002] In recent years, with the rapid increase of my country's urban population, more and more nitrogen and phosphorus nutrients have been discharged into water bodies, coupled with farmland runoff, etc., the phenomenon of eutrophication in water bodies has become more and more serious. Therefore, the discharge of urban domestic sewage has become the main control target of water environment problems, and the control of nitrogen and phosphorus is an important control target of urban sewage discharge and water environment protection. my country's "Urban Sewage Treatment Plant Pollutant Discharge Standard" GB18918-2002 implemented on July 1, 2003 has made clear and strict regulations on the discharge standards of nitrogen and phosphorus. CASS (Cyclic activated sludge system) is a full name of cyclic activ...

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Application Information

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IPC IPC(8): C02F9/14
Inventor 周林成王引平刘景峰刘红刚赵亚斌
Owner 中山市子源生物环境科技有限公司
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