Anaerobic inner circulating reflux type immobilization microorganism fluidized bed reactor

A technology of immobilized microorganisms and fluidized bed reactors, which is applied in the direction of anaerobic digestion and treatment, can solve complex problems, achieve the effects of improving utilization efficiency, improving denitrification capacity, and increasing sewage treatment effect

Inactive Publication Date: 2007-08-08
ZHEJIANG UNIV
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  • Abstract
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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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  • Anaerobic inner circulating reflux type immobilization microorganism fluidized bed reactor

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Embodiment Construction

[0015] 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 en...

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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, depositing area from upwards to downwards, wherein the sludge hopper is set in the depositing area with water distributor on the top; the support pipe is set on the water distributor with reflective board on the upper end; the fixed microbe fill and inner circulation reflux pipe are set in the reacting area; the first and second hopper typed baffles are set on the upper end of inner circulating reflux pipe; three-phase separator is set on the connecting part of first hopper typed baffle and reactor bulk, which connects the second draining pipe, second gas rotor flow meter and second needle valve and water tank through gas chamber; several sampling holes are set on the external wall of reactor bulk, which connects outlet pipe, liquid rotor flow meter, second stop valve and outlet tank through U-shaped pipe.

Description

technical field [0001] The invention relates to an anaerobic internal circulation reflux type immobilized microbial fluidized bed reactor. Background technique [0002] Due to the increasingly serious environmental pollution, the state pays more and more attention to environmental governance. Especially with the implementation of the new socialist countryside construction in the whole country, strengthening the transformation of the rural ecological environment and strengthening the construction of rural infrastructure has become the focus of the country's "Eleventh Five-Year Plan" work, especially the management of water environment, sewage treatment facilities and equipment research and development. The present invention is aimed at the practical problem of difficult denitrification in sewage treatment, and develops an anaerobic internal circulation reflux immobilized microbial fluidized bed reactor to improve sewage treatment effect, especially denitrification efficiency...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
Inventor 陈英旭李松
Owner ZHEJIANG UNIV
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