Sewage treatment device and sewage treatment method

A technology of sewage treatment device and treatment unit, which is applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Good quality, saving operating costs and energy consumption

Pending Publication Date: 2018-12-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the current sewage treatment devices and sewage treatment methods still need to be improved

Method used

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  • Sewage treatment device and sewage treatment method
  • Sewage treatment device and sewage treatment method
  • Sewage treatment device and sewage treatment method

Examples

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Effect test

Embodiment 1

[0057] Embodiment 1 Outlet water quality test

[0058] In this embodiment, the structure of the sewage treatment device can refer to image 3 . Sewage is supplied to the anaerobic fluidized bed from the first water inlet, treated by anaerobic microorganisms, and separated by a three-phase separator, and the sludge mixture with a lower concentration is discharged from the first water outlet, passed through the second The water inlet enters the membrane filtration treatment unit, and the sludge mixed liquid entering the membrane filtration treatment unit flows upwards in the second housing. The water outlet is discharged. In this process, the biogas is drawn out from the air chambers on the top of the first shell and the second shell by using a vacuum pump through the first gas outlet and the second gas outlet, and is sent to the second shell through the aeration port. Medium aeration (aeration gas is the biogas produced in the anaerobic fluidized bed and membrane filtration t...

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Abstract

The invention discloses a sewage treatment device and a sewage treatment method. The sewage treatment device provided by the invention specifically comprises: an anaerobic fluidized bed having a firsthousing, the lower part of the first housing having a first water inlet port, the upper part of the first housing having a first water outlet port and a first gas outlet; a membrane filtration processing unit having a second housing, the lower part of the second housing having a second water inlet port and an aeration port, the upper part of the second housing having a second water outlet port and a second gas outlet, the second water inlet port being connected to the first water outlet port, a filter membrane component being arranged in the second housing, a water outlet port being arrangedat the top part of the filter membrane component, the water outlet port being connected to the second water outlet port, a return port being arranged at the side wall of the second housing, the returnport being arranged between the filter membrane component and the top part of the second housing, and the return port being communicated with the first water inlet port; and a biogas circulation unitrespectively connected to the first gas outlet and the second gas outlet, the unit being able to continuously supply gas to the aeration port. The sewage treatment device can reduce membrane pollution and reduce operating energy consumption.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sewage treatment device and a sewage treatment method. Background technique [0002] With the continuous expansion of population size and the continuous development of social economy, the discharge of urban domestic sewage and industrial sewage also increases, and the load of sewage treatment continues to increase, which requires higher and higher levels of sewage treatment. In recent years, the further treatment of sewage through membrane bioreactors has become the main trend. Microbes can remove soluble and colloidal biodegradable organic matter, phosphorus, nitrogen, etc. in sewage, and have the advantages of high efficiency, simple operation, and mild reaction conditions. Among them, anaerobic microbial fermentation can generate biomass energy (ie, biogas) while degrading organic carbon sources, and realize energy recovery in sewage. However, the traditional anaerobic biol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/44C02F3/2833C02F2303/14
Inventor 黄霞刘紫微肖康程刚
Owner TSINGHUA UNIV
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