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Multistage circulating flow moving bed bio-membrane reactor and application thereof

A technology of moving bed biofilm and circulating flow, which is applied in the field of multi-stage circulating flow moving bed biofilm reactor, can solve the problems of effluent water quality decline, filler fluidization insufficient, and sewage treatment efficiency low, so as to improve the flow state and extend the Residence time, the effect of improving the efficiency of sewage treatment

Pending Publication Date: 2021-07-16
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a multi-stage circulating flow moving bed biofilm reactor, which aims to solve the problem of insufficient fluidization of fillers, low efficiency of sewage treatment, and water effluent caused by the accumulation of fillers in existing MBBR applications. The problem of deteriorating water quality

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  • Multistage circulating flow moving bed bio-membrane reactor and application thereof
  • Multistage circulating flow moving bed bio-membrane reactor and application thereof
  • Multistage circulating flow moving bed bio-membrane reactor and application thereof

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] A multi-stage circulating flow moving bed biofilm reactor, such as figure 1 , figure 2 and image 3 As shown, it includes a first reaction tank 1-1, a second reaction tank 1-2, a first deflector 2-1, a second deflector 2-2, a perforated screen 3, an inlet pipe 4, a first outlet Water pipe 5, the second outlet pipe 6, return pipe 7 and internal return device 8, wherein said first reaction tank 1-1 is anoxic reaction tank or anaerobic reaction tank, and said first reaction tank 1-2 is preferably Oxygen tank.

[0039] The first deflector 2-1 is vertically arranged in the first reaction poo...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly discloses a multistage circulating flow moving bed bio-membrane reactor and application thereof.The multistage circulating flow moving bed bio-membrane reactor comprises a first reaction tank and a second reaction tank which are communicated, the first reaction tank is an anoxic reaction tank or an anaerobic reaction tank, and the second reaction tank is an aerobic reaction tank; and perforated screen pipes are arranged at water outlets of the first reaction tank and the second reaction tank, each perforated screen pipe is of a cylindrical structure with one closed end and the other open end, and a plurality of water passing holes are uniformly distributed in the surface of each perforated screen pipe. The reactor is provided with multiple stages of reaction tanks and an internal reflux device, so that circulation is formed in the reactor, the perforated screen pipe is arranged at the water outlet, and the specific structure of the perforated screen pipe is utilized to control the water flow velocity at the water passing hole, so that the problems of packing accumulation and loss are effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a multistage circulating flow moving bed biofilm reactor and its application. Background technique [0002] The principle of the moving bed biofilm reactor (MBBR) is to add a certain amount of suspension carrier to the reactor to make the microorganisms attach and grow, increase the types of microorganisms, and increase the biomass, thereby improving the treatment effect and effluent water quality. The density of the filler after forming the film is close to that of the activated sludge mixture, and it is in a fluidized state under the action of aeration and water flow, which improves the mixing and mass transfer efficiency. MBBR has the advantages of short construction period, large biomass, stable process operation, strong impact load resistance, low investment, low operating cost, simple management, and suitable for both centralized and decentralized t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/08C02F3/30
CPCC02F3/087C02F3/308Y02W10/10
Inventor 陆谢娟杨思何钧吴晓晖杨旱雨昝飞翔
Owner HUAZHONG UNIV OF SCI & TECH
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