Sewage treatment plant and process by SBR process

A sewage treatment device and process technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc. Instability and other problems, to achieve the effect of saving electromechanical equipment, reducing equipment investment, and preventing sludge layer intrusion

Inactive Publication Date: 2009-01-07
BEIJING DRAINAGE GRP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the decanter of the traditional SBR process is a hydraulic mechanical device that operates by self-control, which has poor reliability, relatively large equipment investment, and relatively large failure rate and maintenance.
In addition, the equipment of the decanter is bulky; the sludge layer is disturbed when the water is discharged, and the water quality of the effluent is unstable; it cannot be installed in a biological reaction tank with a closed top cover, which affects the surrounding air environment. In some residential areas, hotels and restaurants, etc. Applications in places with relatively high quality requirements are limited

Method used

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  • Sewage treatment plant and process by SBR process

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Embodiment Construction

[0022] The present invention will be further explained below in conjunction with the drawings and embodiments: Embodiments:

[0023] The present invention has been applied to engineering practice, including the sewage treatment station project (1000m 3 / d, completed and accepted in January 2003), Beijing Huairou Financial Cadre Training Center Sewage Treatment Station Project (600m 3 / d, completed and accepted in August 2006), now all have entered the normal use stage. The two sewage treatment stations are located in the courtyards of hotels and restaurants, and the surrounding environment is good and there is no bad smell. Since the sewage station has no complicated equipment, high degree of automation, simple operation and management, and good effluent quality, these two engineering examples have won unanimous praise from users.

[0024] Take the sewage treatment station project plan of the Beijing Huairou Financial Cadre Training Center as an example:

[0025] The design of the...

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Abstract

The invention discloses a sewage treatment device and a method of a SBR process. The device is provided with a reaction tank; an aeration head is arranged at the bottom of the reaction tank; and the aeration head communicates with a blower fan. The sewage treatment device is characterized in that an overflowing weir is arranged on the upper edge of the reaction tank; a central water distributor is vertically arranged in the middle of the reaction tank; the lower end of the water distributor communicates with a water inlet pump; a sludge discharge pipe communicating with a sludge discharge pump is arranged at the bottom of the reaction tank. The method which utilizes the device comprises the following steps: firstly, feeding water and draining the water; secondly, aerating; and thirdly, depositing and draining sludge. The sewage treatment device and the method are suitable for the sewage treatment of the SBR process, have the advantages of simple structure, and low manufacture and running cost, and can be completely built under the ground, thereby having no effect on buildings on the ground and no pollution to ambient environment.

Description

Technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to an improved device using an SBR sewage treatment process and a method of using the device. Background technique [0002] The SBR process is a sequential batch wastewater secondary treatment process. From the perspective of the entire process, the SBR process adopts intermittent operation, and the SBR reaction tank plays different roles at different times. The process divides the treatment process into water inlet, aeration, sedimentation, and water outlet (sludge discharge can be combined into the water outlet sequence) These four timings, the time used to complete these four timings is called a cycle. The first time sequence is water inflow, and the sewage continuously enters the treatment tank during this time period until it reaches the maximum operating level; the second time sequence is aeration. During this time period, no water enters or drains, but the aeration system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 甘一萍常江胡俊柏永生卢长松许燕卢爱国
Owner BEIJING DRAINAGE GRP CO LTD
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