Rural domestic sewage combined type ecological treatment system and treatment method, and application thereof

A technology for domestic sewage and ecological treatment, applied in biological water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Strong applicability and sustainability, ensuring the effect of water quality compliance

Inactive Publication Date: 2016-04-06
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, judging from some current research and practical applications, since the combination of rural domestic sewage treatment mainly treats organic matter in the anaerobic and aerobic stages, the removal of phosphorus is mainly in constructed wetlands, which requires large adsorption capacity in constructed wetlands , on the one hand, the artificial wetland needs a larger area to increase its adsorption capacity; on the other hand, it also has higher requirements on the phosphorus adsorption performance of the filler to prevent its adsorption saturation and reduce the phosphorus removal performance.

Method used

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  • Rural domestic sewage combined type ecological treatment system and treatment method, and application thereof

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Embodiment 1

[0046] Such as figure 1 As shown, a combined ecological treatment system for rural domestic sewage includes a sewage collection pipe network 1 connected in sequence, a regulating tank 2 (which can be used as a septic tank for anaerobic reaction, and can also adjust the water volume for uniform water distribution), advanced Biological contact oxidation tank 3 (first-level treatment device), high-efficiency biological filter 4 (second-level treatment device) and constructed wetland 5 (third-level treatment device);

[0047] Wherein, the advanced biological contact oxidation tank includes a first reaction zone 3-1 and a second reaction zone 3-2, and the first reaction zone 3-1 and the second reaction zone 3-2 are connected in the form of falling water; the first The reaction zone 3-1 is connected to the sewage collection pipe network 1; the second reaction zone 3-2 is connected to the high-efficiency biological filter 4; the sewage at the bottom of the first reaction zone 3-1 is ...

Embodiment 2

[0070] Example 2 Rural Domestic Sewage Pollutants Removal Effect

[0071] According to Example 1, a combined ecological treatment system for rural domestic sewage is constructed. The system is located in Fenshui Village, Zhoutie Town, Yixing City, Jiangsu Province. After the system has been in operation for one year, the influent water samples and the effluent water samples are respectively collected at the end of each month, and 10 consecutive samples are taken. moon. Among them, the average indicators of influent water samples are COD170mg / L, TN21.7mg / L, TP2.2mg / L, NH 3 -N9.6mg / L, SS68mg / L, the average effluent indicators are COD28.5mg / L, TN4.8mg / L, TP0.16mg / L, NH 3 -N1.8mg / L, SS3.6mg / L, the removal rate of the system for rainfall non-point source pollutants respectively reached COD82%, TN65%, TP93%, NH 3 -N80%, SS94%, this system can effectively reduce rural domestic pollution from entering surrounding river water bodies.

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Abstract

The invention belongs to the technical field of sewage treatment, and in particular, relates to a rural domestic sewage combined type ecological treatment system and a treatment method, and an application thereof. The rural domestic sewage combined type ecological treatment system includes a sewage collection pipe network, a regulation pool, a high-grade biological contact oxidation pool, a high-efficiency biological filter pool and a constructed wetland which are successively connected, wherein the high-grade biological contact oxidation pool includes a first reaction zone and a second reaction zone, and the first reaction zone and the second reaction zone are connected in a hydraulic drop form; the first reaction zone is connected with the sewage collection pipe network; the second reaction zone is connected with the high-efficiency biological filter pool. By biological carrier high-grade contact oxidation, adsorption effect based on water supply sludge and deep treatment of the constructed wetland, pollutants in the domestic sewage are removed finally, so that the domestic sewage can be subjected to effective purification treatment. The device and the method have wider applicability, can effectively control the pollutants of the rural domestic sewage, and reduce the amount of pollutants entering river channels.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a rural domestic sewage combined ecological treatment system, treatment method and application. Background technique [0002] In the past two decades, although my country's sewage treatment plants have been continuously built and the sewage treatment rate has been continuously improved, sewage treatment projects are mainly concentrated in cities, and sewage in most rural areas of the country is still untreated. proportion is increasing. How to effectively treat rural sewage has become an urgent task facing our country's environmental protection. In rural areas, due to the weak technical and economic foundation, lack of special funds and professional technical management personnel, it is difficult to guarantee the daily operation and maintenance of sewage treatment facilities. Moreover, rural domestic sewage has different characteristics from urban domestic s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F3/00C02F3/02C02F3/105C02F3/107C02F3/108C02F3/28C02F3/32C02F9/00C02F2301/08
Inventor 魏东洋方晓航贺涛桑燕鸿李宇王信伍高燕黄兆生韩云婷杨竹
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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