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Secondary biochemical treatment technology based on SBR method

A treatment process, secondary biochemical technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, aerobic process treatment, etc., can solve the problem that activated sludge cannot be reused, aeration pipes are easily blocked, and energy consumption is high. problems, to achieve the effect of convenient combined use of sewage treatment, streamlining the number of equipment, and high oxygenation efficiency

Inactive Publication Date: 2019-10-11
河南省正大环境科技咨询工程有限公司
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high energy consumption, large floor area, easy blockage of aeration pipes and non-recyclable activated sludge of the above-mentioned traditional secondary biochemical treatment process. The present invention provides a secondary biochemical treatment process based on SBR method. Biochemical treatment process

Method used

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  • Secondary biochemical treatment technology based on SBR method
  • Secondary biochemical treatment technology based on SBR method
  • Secondary biochemical treatment technology based on SBR method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A secondary biochemical treatment process based on the SBR method, including water intake, aeration, sedimentation, drainage and idle stages, all stages occur inside the SBR tank 1; the inside of the SBR tank 1 is equipped with an aerator 2 and a decanter The control switches of the water tank 3, the aerator 2 and the decanter 3 are all connected to the control device arranged outside the SBR pool 1 through electrical signals, and at the same time, in order to be more conveniently connected to the constructed wetland 10, the SBR pool 1 in this example is half Buried in the ground, the upper left part of the SBR pool 1 is provided with a water inlet 6, and the water inlet 6 is connected to the water inlet pipe 11 arranged on the left side of the SBR pool 1, and the water inlet pipe 11 in this example is provided with an electromagnetic valve 12 , The electromagnetic valve 12 is also connected with the control device through an electric signal. The middle part of the righ...

Embodiment 2

[0029] A secondary biochemical treatment process based on the SBR method, including four SBR pools 1 arranged side by side. The interior of each SBR pool 1 includes water intake, aeration, sedimentation, drainage and idle stages. The interior of the four SBR pools 1 The structure is the same as that in Example 1, and each control switch inside the four SBR pools 1 is connected to the same control device; the water inlets 6 of the four SBR pools 1 are all connected to the same water inlet pipeline 11 in this example , the water outlets 7 of the four SBR pools 1 are all connected to a drainage channel 9 extending horizontally in the front and rear directions. The number of water outlet pipes connected to the water outlet 7 can reduce the probability of the water outlet 7 of the SBR pool 1 being blocked due to the blockage of the water outlet pipes while saving the material of the water outlet pipes. Four SBR pools 1 are arranged in sequence from front to back. After the water in...

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Abstract

The invention provides a secondary biochemical treatment technology based on a SBR method. The secondary biochemical treatment technology is carried out in an SBR pond. The secondary biochemical treatment technology comprises a water inflowing stage, an aeration stage, a precipitating stage, a water drainage stage and an idle stage, wherein the water inflowing stage and the aeration stage are started at the same time, and the aeration stage is ended later than the water inflowing stage; an aerator is mainly adopted in the aeration stage, the precipitating stage immediately follows the aerationstage, and through ending of the aerator, starting of the precipitating stage is controlled; the water drainage stage is after the precipitating stage, and a water decanter is mainly adopted in the water drainage stage. Starting and ending of the water drainage stage are controlled by the water decanter, the idle stage is after the water drainage stage, and after the water decanter drains wastewater supernatant liquid, the interior of the SBR pond enters the idle stage. In a word, the secondary biochemical treatment technology has the advantages of being simple in structure, low in floor space, low in device energy consumption and capable of preventing a pipeline from being blocked.

Description

technical field [0001] The invention relates to the technical field of environmental protection technology engineering, in particular to a secondary biochemical treatment process based on the SBR method. Background technique [0002] At present, the existing technology of urban sewage treatment in my country is relatively mature. Modern sewage treatment technology can be divided into primary, secondary and tertiary treatment according to the degree of treatment. The secondary treatment mainly removes the colloid and dissolved state in sewage. The organic pollutants (BOD, COD substances), the secondary treatment is a very important process; if the sewage directly enters the subsequent anaerobic or sequencing batch bioreactor without secondary treatment, it may be due to the COD content of the sewage If it is too high, the organisms in the subsequent sewage treatment equipment will be overloaded, which will eventually lead to a decrease in the treatment effect of the equipment a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F3/20C02F7/00
CPCC02F3/1263C02F3/1284C02F3/20Y02W10/10
Inventor 王翔张金菊朱召军周记玲张瑜倩高慧燕
Owner 河南省正大环境科技咨询工程有限公司
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