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Sewage treatment device

A technology of sewage treatment device and level height, which is applied in the field of water treatment, can solve the problems of increasing the structural complexity of the membrane filter, affecting the maintenance of membrane separation equipment, etc., so as to reduce the difficulty of processing or construction, reduce the overall energy consumption, and simplify the internal structure. Effect

Active Publication Date: 2012-11-14
BEIJING ECOJOY WATER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent application still has the following deficiencies: firstly, the energy consumption of the plug-flow equipment is still relatively considerable, so that the overall energy consumption level of the negative pressure external membrane bioreactor is still slightly higher than that of the conventional biological treatment process; secondly, when the membrane When there is no first partition wall or the first partition wall and the second partition wall in the filter tank, the pushing flow equipment is installed directly above the membrane separation equipment, which affects the maintenance of the membrane separation equipment. When the first partition wall or the first partition wall and the second partition wall are provided in the membrane filter tank, although there is no longer the problem that the push flow equipment affects the maintenance of the membrane separation equipment, it increases the The complexity of the structure of the membrane filter

Method used

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Experimental program
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Effect test

Embodiment 1

[0120] Please refer to Figure 1a , Figure 1b , Figure 1c , Figure 1a It is a schematic plan layout diagram of the sewage treatment device provided by Embodiment 1 of the present invention, Figure 1b for Figure 1a The sectional view at A-A in, Figure 1c for Figure 1a Sectional view at B-B in . The sewage treatment device provided by the present invention includes a biological reaction tank 1 and a membrane filter tank 2 , and a common side wall 5 is arranged between the biological reaction tank 1 and the membrane filter tank 2 . A membrane separation device 3 and a membrane filter aeration device 4 are installed in the membrane filter 2 , and a biological reaction tank aeration device 18 is installed in the biological reaction tank 1 . The feed liquid supply channel 6 is composed of the first through hole 8 arranged on the common side wall 5 and the first guide tube 10 arranged in the bioreactor 1, the first guide tube 10 is connected with the first through hole 8 C...

Embodiment 2

[0128] The sewage treatment device of the present embodiment is basically similar to that of embodiment 1, and the cross-sectional situation at its A-A place and B-B place is respectively the same as that of embodiment 1. Figure 1b and Figure 1c The same, but the difference is that the wall width of the bioreactor 1 parallel to the common side wall 5 is larger than that of the membrane filter 2, figure 2 It is a schematic layout diagram of this embodiment. The structure and working principle of the remaining parts are the same as in Embodiment 1.

Embodiment 3

[0130] The sewage treatment device of this embodiment is basically similar to that of Embodiment 1, and its plane layout and the section situation at the B-B place are respectively the same as those in Embodiment 1. Figure 1a and Figure 1c The same, but the difference is that the effective water depth of bioreactor 1 is larger than that of membrane filter 2, the top surface of the two is on the same level, but the bottom surface is not on the same level, and the bottom surface of bioreactor 1 is higher than that of membrane filter 2 has a lower base, image 3 It is the sectional view of A-A place of the present embodiment. The structure and working principle of the remaining parts are the same as in Embodiment 1.

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Abstract

The invention discloses a sewage treatment device which comprises a biological reaction tank and a membrane filter tank. A membrane separation device and a membrane filter tank aeration device are arranged in the membrane filter tank, a feed liquid supplying channel and a feed liquid backflow channel are arranged between the biological reaction tank and the membrane filter tank, an inlet of the feed liquid supplying channel is arranged in the biological reaction tank, an outlet of the feed liquid supplying channel is arranged in the membrane filter tank, an inlet of the feed liquid backflow channel is arranged in the membrane filter tank, an outlet of the feed liquid backflow channel is arranged in the biological reaction tank, and the feed liquid supplying channel and the feed liquid backflow channel are directly communicated with the biological reaction tank and the membrane filter tank. The horizontal height of the outlet of the feed liquid backflow channel in the biological reaction tank is lower than or equal to that of the inlet of the feed liquid backflow channel in the membrane filter tank, or the horizontal height of the outlet of the feed liquid backflow channel in the biological reaction tank is higher than that of the inlet of the feed liquid backflow channel in the membrane filter tank, and the difference in height is not over 2m. Due to the fact that a plug flow device is not required, the sewage treatment device can reduce overall energy consumption.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201210052324.0 and the title of the invention "a sewage treatment device" submitted to the China Patent Office on March 1, 2012, the entire contents of which are incorporated in this application by reference. technical field [0002] The invention relates to a sewage treatment device, which belongs to the technical field of water treatment. Background technique [0003] Membrane Bioreactor (MBR) process is an efficient sewage treatment and reuse technology that organically combines membrane separation technology and traditional biological treatment technology. In the membrane bioreactor system, all kinds of pollutants in the sewage are mainly removed through the biochemical action of microorganisms, but different from the traditional biological treatment process, the membrane separation equipment replaces the secondary sedimentation tank to make the muddy water Complete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 孙友峰钱珏
Owner BEIJING ECOJOY WATER TECH