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Sewage treatment method

A sewage treatment method and sewage technology, applied in the direction of water/sewage multi-stage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of difficult to guarantee the quality of effluent from sewage treatment plants, nitrogen and phosphorus content High-level problems, to achieve the effect of improving removal capacity, enhancing nitrogen and phosphorus removal capacity, and simple operation and management

Active Publication Date: 2008-06-18
EVERBRIGHT ENVIRONMENTAL PROTECTION CHINA
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Problems solved by technology

[0007] In order to solve the problem that the effluent water quality of the sewage treatment plant using the traditional AB process is difficult to guarantee, and the content of nitrogen and phosphorus in the treated sewage is higher than the sewage discharge standard

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] figure 1 It is a schematic flow chart of a sewage treatment method determined by the present invention. As shown in the figure, the sewage treatment method is divided into three sections: pretreatment section, adsorption deposition section, and biodegradation section.

[0024] The pretreatment section includes grid 1 and grit chamber 2. The sewage first passes through the grid 1 to remove coarse suspended matter and sundries, and then enters the grit chamber 2. Through physical settlement, the inorganic particles contained in the sewage are removed to protect the subsequent equipment. Of course, in this pretreatment section, other methods can also be used to initially remove coarse suspended solids and impurities in the water, such as filtration or air flotation, which can also achieve the same effect of removing impurities and realize the main...

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Abstract

The invention relates to a sewage treatment method, which comprise the following steps: firstly, the sewage is pre-treated, absorbed and subsided; secondly, the sewage after treated in the first step is mixed with the back-flow substances in the Aerobic pond and sedimentation pond, and enters anoxic pond to finish the denitrifying and degradation of partial organic contaminations; thirdly the water after treated in the anoxic pond flows into the aerobic pond added with biological fillings; fourthly, the sedimentation is treated, the purified water flows out. By the above improved novel sewage treatment method, the nitrogen-removing and dephosphorization capability of the original AB sewage treatment process is enhanced, under the condition of not adding constructions, the organic substance removal capability of sewage treatment factory can be improved, thereby meeting the requirements of enlarging capacity and enhancing efficiency, and having obvious economic benefit.

Description

【Technical field】 [0001] The invention relates to a sewage treatment method, in particular to a water treatment method for upgrading the original urban sewage treatment method——AB method (Adsorption-Biodegradation) by applying HYBAS (hybrid biofilm-activated sludge) aerobic process. 【Background technique】 [0002] AB method sewage treatment process is the abbreviation of adsorption-biodegradation (Adsorption-Biodegradation). It is a sewage treatment process created by Professor Bohnke of RWTH Aachen University in Germany in the mid-1970s and used in production practice since the early 1980s. [0003] The whole system of AB process is divided into three sections: pretreatment section, adsorption deposition section, and biodegradation section. The principle of removing pollutants in the pretreatment section is through physical interception and sedimentation. The adsorption deposition section is composed of an adsorption tank and an intermediate sedimentation tank. The biodeg...

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Application Information

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IPC IPC(8): C02F9/14C02F1/28C02F1/52C02F3/30
Inventor 黄朝华克莱斯·斯约林高兴斋廖足良安屹立奥德·H·科尔金牛克胜牛学义魏伟弗雷明·G·威斯曼覃广海乔·G·斯尔尤达伦朱淑玲
Owner EVERBRIGHT ENVIRONMENTAL PROTECTION CHINA
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