Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device

A sewage treatment device and biochemical reaction technology, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of large sedimentation tank, poor separation effect, membrane method construction High cost and operating cost, etc., to achieve the effect of preventing membrane pollution, simple equipment structure, and reducing equipment investment costs

Inactive Publication Date: 2015-02-11
湖北盘古环保工程技术有限公司
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Problems solved by technology

[0008] In order to improve the deficiencies of the current existing technologies: the flow sedimentation method and the membrane method can ensure the continuous flow of sludge and sewage, but the flow sedimentation method has a large sedimentation tank and the separation effect is not good, and the construction cost and operation cost of the membrane method are relatively high

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  • Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device
  • Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device
  • Continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device

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Embodiment Construction

[0047] Below in conjunction with accompanying drawing and embodiment substantive content of the present invention is described in further detail:

[0048] (1) The sewage to be treated collected through the pipeline is pretreated to remove large particles of suspended solids and floating solids, then flows into the sump, is lifted by the lift pump, and flows from the main sewage inlet pipe 1 through the regulating valve 18 of the main inlet pipe into the lack of water. Oxygen biochemical reaction zone 2.

[0049] (2) The sewage entering the integrated sewage treatment device first passes through the third overflow hole 7 in the biochemical reaction zone 2, and is returned to the first static sedimentation separation zone of the biochemical reaction zone 2 by the mixed liquid return pump 8 5. Or mix the high-concentration sludge-sewage mixed solution separated by sedimentation and separation in the second static sedimentation separation zone 6 to form a relatively low-concentrat...

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Abstract

The invention relates to a continuous biochemical reaction and intermittent static precipitation integrated sewage treatment device. According to the invention, an entire sewage treatment process is centralized to a treatment tank which can be rectangular or circular. The device is divided into two types of functional zones, which are 1, biochemical reaction zones and 2, steady-flow precipitation zones. Newly entered sewage to be treated is mixed with precipitated and separated active sludge; the mixture continuously flows through the biochemical reaction zones in a reaction tank, such that biochemical reactions are completed. More than two relatively independent zones are arranged in the steady-flow precipitation zone, and the zones run alternately and intermittently, such that precipitation separation is performed under a relatively static condition, while the biochemical reaction zones work continuously. With the entire device and technical process, continuous treatment of newly entered sewage and static precipitation separation of the mixed liquid of sludge and sewage are realized. The device has the advantages of simple structure, low construction cost, low operation cost, and good effect. The device can be widely applied in industrial and domestic sewage treatments.

Description

technical field [0001] The invention relates to a sewage treatment device. It specifically relates to a circulating sewage treatment device in which activated sludge, biofilm or activated sludge and biofilm coexist, and the mixed liquid containing suspended sludge performs biochemical reaction and intermittent static solid-liquid separation in a continuous flow. Widely used in the treatment of industrial and domestic sewage. Background technique [0002] In the traditional sewage biochemical treatment method, activated sludge (liquid-solid mixed biological contact), biofilm (liquid film biological contact) or activated sludge and biofilm co-exist in the sewage treatment process, in order to obtain clean treated water, It is necessary to let the sewage undergo biochemical reactions first, and then separate the solid-liquid mixture containing suspended activated sludge or exfoliated biofilm (hereinafter referred to as "sludge-sewage mixture"). [0003] The process of biochem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F3/1215C02F3/301C02F3/302
Inventor 李秀东王毅其他发明人请求不公开姓名
Owner 湖北盘古环保工程技术有限公司
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