Membrane aeration bioreactor-granular sludge integrated sewage treatment device and method

A sewage treatment device and bioreactor technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. Insufficient density and other problems to achieve the effect of saving floor space, reducing energy consumption, and simplifying the process flow

Active Publication Date: 2021-11-12
GREENTECH ENVIRONMENTAL CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, membrane aerated bioreactors usually replace biofilters as the secondary sewage treatment unit in practical applications; The content of suspended solids is high, and a secondary settling tank must be added at the rear end; if you want to overcome the above defects, you need to consider improving the design of the membrane aerated bioreactor

Method used

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  • Membrane aeration bioreactor-granular sludge integrated sewage treatment device and method
  • Membrane aeration bioreactor-granular sludge integrated sewage treatment device and method

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Embodiment Construction

[0033] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0034]In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0035] The embodiment of the present disclosure provides a membrane aerated bioreactor-granular sludge integrated sewage treatment device, such as figure 1 As shown, it includes the reaction tank body 1, the isolation plate 2, the hollow fiber membrane module 3, the aerobic granular sludge 4 and ...

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Abstract

The invention relates to a membrane aeration bioreactor-granular sludge integrated sewage treatment device and a membrane aeration bioreactor-granular sludge integrated sewage treatment method. The device comprises a reaction tank body, an isolation plate, a hollow fiber membrane module, aerobic granular sludge and a pipe gallery structure, the isolation plate is arranged in the reaction tank body and divides the reaction tank body into a first reaction cavity and a second reaction cavity, the hollow fiber membrane module is arranged in the first reaction cavity, the aerobic granular sludge is arranged in the second reaction cavity, and a water passing opening is formed between the top end of the isolation plate and the reaction tank body; the pipe gallery structure comprises a water inlet pipe, a water outlet pipe, an oxygen supply device and an aeration device, the water inlet pipe is connected into the first reaction cavity, the oxygen supply device is communicated with the hollow fiber membrane module, the water outlet pipe is internally connected above the aerobic granular sludge in the second reaction cavity, and an aeration port of the aeration device is located below the aerobic granular sludge in the second reaction cavity. The effluent turbidity is lower, the water quality is better, and a secondary sedimentation tank and a sludge backflow system do not need to be arranged.

Description

technical field [0001] The disclosure relates to the technical field of sewage treatment, in particular to a membrane aeration bioreactor-granular sludge integrated sewage treatment device and method. Background technique [0002] Membrane aerated bioreactor is a new type of biofilm combination process, in which the "membrane" is usually a hollow fiber membrane, the surface of the hollow columnar membrane filament is covered with biofilm, and the outside of the biofilm is a liquid phase composed of raw water to be treated. The "membrane" not only provides aeration but also serves as the carrier of the biofilm; in actual use, oxygen diffuses into the biofilm through the membrane / biofilm interface, making the biofilm form an aerobic layer, anoxic layer, The oxygen layer, while the pollutants in the raw water enter the biofilm reversely through the biofilm / liquid phase interface, the heterogeneous mass transfer of oxygen and substrate makes the biofilm function reasonably strat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/20C02F3/30C02F7/00
CPCC02F3/102C02F3/208C02F3/1278C02F3/301C02F3/1268Y02W10/10
Inventor 刘牡段梦缘孙凯苏英强黎泽华韩慧铭林晓峰张立言
Owner GREENTECH ENVIRONMENTAL CO LTD
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