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Aerobic inner circulating reflux type immobilization microorganism fluidized bed reactor

A technology of immobilized microorganisms and fluidized bed reactors, applied in the direction of aerobic process treatment, sustainable biological treatment, etc., can solve complex problems, achieve good degradation, improve denitrification ability, and increase the effect of sewage treatment

Inactive Publication Date: 2007-08-08
ZHEJIANG UNIV
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Problems solved by technology

In addition, the shape of the reactor is rectangular, square and circular. The circular reactor has the characteristics of relatively stable structure and uniform water distribution, but the construction of the three-phase separator for the circular reactor is much more complicated than that of the rectangular and square reactors.

Method used

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  • Aerobic inner circulating reflux type immobilization microorganism fluidized bed reactor

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Embodiment Construction

[0014]The present invention mainly considers the following factors. 1) The height of the sedimentation zone in the reactor is not high enough, so that the solid-liquid mixture stays in the sedimentation zone for not long enough, resulting in poor sedimentation effect, which is not conducive to solid-liquid phase separation, and when the immobilized microbial filler is used to treat sewage, the immobilized microbial If the height of the packing is not enough in the sedimentation zone, it is easy to lose with the water flow. Therefore, the height of the sedimentation zone was appropriately increased in the design of the reactor, which is not only beneficial to the separation of solid and liquid phases, but also can effectively prevent the loss of immobilized microbial fillers. 2) For the reflux of the general reactor, a reflux device must be connected outside the reactor. The use of the reflux device will lead to the overall structure of the reaction device being not compact eno...

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Abstract

The invention discloses an aerobic inner loop reflux typed immobilized microbe fluid-bed reactor, which comprises the following parts: sediment area, reacting area and depositing area, wherein the bottom of depositing area possesses sludge hopper with water distributor on the top, which connects pump through inlet pipe; the support aerating pipe is set on the water distributor, which connects inlet pipe and microhole aerating machine; the reflective board is set on the support aerating pipe; the immobilized microbe fill and inner loop reflux pipe are set in the reacting area with the first and second hopper-shaped sampling holes on the top of inner loop reflux; the bottom of sludge hopper connects the first stop valve and sludge draining pipe; the outer wall of reactor bulk possesses multiple sampling holes; the top of reactor bulk connects U-shaped pipe, outlet pipe, liquid rotor flow gauge, the second stop valve and outlet tank.

Description

technical field [0001] The invention relates to an aerobic internal circulation reflux immobilized microorganism fluidized bed reactor. Background technique [0002] Due to the increasingly serious environmental pollution, the country is paying more and more attention to environmental governance. Especially with the implementation of the new socialist countryside construction in the whole country, it has become the focus of the country's "Eleventh Five-Year Plan" to strengthen the transformation of rural ecological environment and strengthen the construction of rural infrastructure, especially in the treatment of water environment, sewage treatment facilities and equipment research and development. The invention of this country is aimed at the actual problem of sewage treatment, and develops a new type of internal circulation backflow immobilized microbial fluidized bed reactor to improve the sewage treatment effect, especially the nitrogen removal efficiency. [0003] In ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 陈英旭李松
Owner ZHEJIANG UNIV
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