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Sludge reflux type three-phase separator used in anaerobic reactor

An anaerobic reactor and three-phase separator technology, which is applied in the field of sludge return three-phase separator, can solve the problem of affecting sludge settlement and gas-solid separation, disturbing sludge return, and failing to maintain reactor sludge concentration, etc. problems, to achieve the effect of ensuring high-efficiency treatment, expanding the flow cross-sectional area, and mitigating disturbance

Active Publication Date: 2015-03-04
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main disadvantages of the above common three-phase separators are: the gas, liquid and solid mixed liquid inlet and the sludge return port are mostly overlapped, which will cause the rising water flow to interfere with the return of the sludge, and at the same time, the gas that is not completely separated It will enter the sedimentation area with the sludge, which affects the sludge settlement and gas-solid separation effect, and cannot maintain a high sludge concentration in the reactor

Method used

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  • Sludge reflux type three-phase separator used in anaerobic reactor
  • Sludge reflux type three-phase separator used in anaerobic reactor
  • Sludge reflux type three-phase separator used in anaerobic reactor

Examples

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Effect test

Embodiment 1

[0046] The separator of the present invention used in the verification process is compared with the traditional three-phase separator, and its structure and size are exactly the same as the traditional three-phase separator except that the separation parts are different. By monitoring the COD of the effluent (measured by the potassium dichromate method, the same below), the SS concentration of the suspended solids in the effluent and the biogas generation rate during the operation of the reactor, it is shown that the new three-phase separator has a better performance than the traditional three-phase separator. Three-phase separation effect.

[0047] The processed anaerobic reactor of present embodiment is as Figure 5 , Figure 6 shown. in, Figure 5 For inserting the anaerobic reactor of three-phase separator of the present invention, denoted as No. 1 reactor, Figure 6 It is an anaerobic reactor equipped with a traditional three-phase separator, which is recorded as No. ...

Embodiment 2

[0058] The connection relationship of the sludge return type three-phase separator used in the anaerobic reactor used in this embodiment is the same as that of Example 1, except that its specific parameters in the separator are: the two sides of the lower three-phase separation plate and the The angle between the horizontal line is 50°, the angle between the plates on both sides of the upper three-phase separation plate and the horizontal line is 45°, the angle between the plate surface of the upper half of the upper sludge return plate and the horizontal line is 65°, and the angle between the lower plate surface and the horizontal line The included angle is 55°, and the included angle between the lower sludge return short board and the horizontal line is 35°.

[0059] The angle between the plane where the upper half of the plate in the upper sludge return plate is located and the plane where the upper half of the plate in the lower three-phase separation plate is close to the ...

Embodiment 3

[0065] The connection relationship of the sludge return type three-phase separator used in the anaerobic reactor used in this embodiment is the same as that of Example 1, except that its specific parameters in the separator are: the two sides of the lower three-phase separation plate and the The angle between the horizontal line is 60°, the angle between the plates on both sides of the upper three-phase separation plate and the horizontal line is 55°, the angle between the plate surface of the upper half of the upper sludge return plate and the horizontal line is 80°, and the angle between the lower plate surface and the horizontal line The included angle is 75°, and the included angle between the lower sludge return short board and the horizontal line is 47.5°.

[0066] The angle between the plane of the upper half of the plate in the upper sludge return plate and the plane of the upper half of the plate in the lower three-phase separation plate close to the upper sludge retur...

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Abstract

The invention discloses a sludge reflux type three-phase separator used in an anaerobic reactor. The separator comprises an upper three-phase separation plate, a lower three-phase separation plate, an upper sludge reflux plate and a lower sludge reflux short plate, wherein an upper sludge reflux channel is formed between the upper sludge reflux plate and the lower three-phase separation plate, and a lower sludge reflux channel is formed between the lower sludge reflux plate and the lower three-phase separation plate; the upper sludge reflux channel and the lower sludge reflux channel are joined at the edge of the lower separation plate to form a sludge joined reflux channel, so that the sludge reflux channels are independent of and separated from a gas-liquid-solid three-phase mixed liquid ascending channel. The sludge reflux type three-phase separator can be used for improving the gas-liquid-solid three-phase separation effect in sewage anaerobic biological treatment and guaranteeing the anaerobic effluent quality, is simple in structure, and has strong practicality.

Description

technical field [0001] The patent of the invention belongs to the field of anaerobic biological treatment of wastewater, and specifically relates to a sludge return type three-phase separator used in an anaerobic reactor. Background technique [0002] Among the current wastewater biological treatment methods, the anaerobic biological treatment method has been widely used and has achieved good results because of its high organic load tolerance, low operating costs, small and stable residual sludge, and convenient management. processing effect. [0003] The anaerobic reactor is the core equipment for the anaerobic biological treatment of wastewater and plays the most important role in the wastewater treatment process. There are mainly three types of anaerobic reactors commonly used at present: UASB, EGSB and IC reactors. The UASB reactor is a high-efficiency sewage anaerobic reaction system developed by Lettinga, a professor at the Wageningen Agricultural University in the N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28
CPCC02F3/2866C02F2303/24Y02E50/30
Inventor 马邕文刘光瑞万金泉王艳
Owner SOUTH CHINA UNIV OF TECH
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