Domestic sewage treatment process

A technology for domestic sewage and treatment process, which is applied in the fields of oxidized water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. time, etc.

Inactive Publication Date: 2018-05-08
北京路鹏达环境工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the existing technology, most of the domestic sewage is treated with grids and first-stage sedimentation, and finally the pretreated sewage is discharged to the corresponding sewage treatment plant. This treatment method is unreasonable and takes a long time to process. , the processing effect is not good

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] see figure 1 shown;

[0027] The invention discloses a process for treating domestic sewage, which is mainly designed to handle 15 cubic meters per day. At the same time, the design adopts automatic control operation to reduce the labor intensity of operators and improve the management level of sewage treatment stations; when designing, it is necessary to consider The periodic changes of water quantity and water quality improve the flexibility and operability of the system, and adopt the sludge pre-reflux nitrification process to reduce the amount of sludge produced.

[0028] See the table below for the influent water quality and discharge standard requirements of the domestic sewage treatment process disclosed in the present invention: ...

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Abstract

The invention discloses a domestic sewage treatment process which saves water, is good in treatment effect and meets the discharge standard. The treatment process includes the following steps that 1,pretreatment is conducted, wherein domestic sewage is intercepted by a structure with grids and automatically flows into an adjustment pool; 2, biochemical treatment is conducted, wherein sewage adjusted by the adjustment pool is sequentially sent to an anaerobic pool and an aerobic pool through a lift pump for biochemical treatment; 3, precipitation treatment is conducted, wherein sewage treatedby the aerobic pool enters a secondary sedimentation pool for precipitation treatment; 4, disinfection treatment, wherein the sedimentation pool discharge water to a disinfection pool for disinfection, and various indexes of sewage obtained after disinfection meet the standard. According to the domestic sewage treatment process, the arrangement of the adjustment pool can balance the water amount and the water quality, and continuous operation of follow-up treatment units is ensured. Through the combination of the characteristics of domestic sewage, anaerobic treatment and aerobic treatment arecombined for biochemical treatment, a large part of organic matter in sewage can be treated, and the purification effect is good.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a domestic sewage treatment process. Background technique [0002] In the treatment of kitchen sewage, toilet sewage, and other daily sewage, because the concentration of the above-mentioned several domestic organic substances is relatively low, the biodegradability is good. In order to protect the environment, the part of the domestic sewage that cannot be discharged into the sewage treatment plant must be treated at the first level, and only after it meets the national or local discharge standards can it be allowed to enter the corresponding water body or be reused. [0003] However, in the existing technology, most of the domestic sewage is treated with grids and first-stage sedimentation, and finally the pretreated sewage is discharged to the corresponding sewage treatment plant. This treatment method is unreasonable and takes a long time to process. , the processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/001C02F1/76C02F3/30C02F9/00C02F2001/007C02F2101/30C02F2301/04C02F2303/04
Inventor 赵建章刘爽李强邱新宇
Owner 北京路鹏达环境工程有限公司
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