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A method and device for advanced treatment of rural sewage combined with artificial wetland and infiltration system

A technology for constructed wetlands and rural sewage, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the increasingly serious problems of pollution, and achieve enhanced microbial nitrification-denitrification Effects of denitrification, increasing clarity and reducing turbidity

Active Publication Date: 2018-02-02
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for advanced treatment of rural sewage combined with artificial wetland and infiltration system. This method aims at the current environmental problems such as the low level of decentralized sewage treatment in rural areas and the increasingly severe agricultural non-point source pollution. , grid pond, regulating pond, constructed wetland and infiltration system form an ecological combination treatment process for rural decentralized sewage, realize the effective treatment of rural decentralized living and aquaculture sewage, and achieve sewage purification and safe discharge

Method used

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  • A method and device for advanced treatment of rural sewage combined with artificial wetland and infiltration system
  • A method and device for advanced treatment of rural sewage combined with artificial wetland and infiltration system

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Embodiment 1

[0027] Embodiment 1 (as figure 1 shown):

[0028] A device for advanced treatment of rural sewage by combining constructed wetlands and infiltration systems, including a main water inlet pipe 1, a grid pool 2, a regulating pool 3, a water distribution pipe 4 with "⊥"-shaped openings, and a first-stage surface flow constructed wetland 5. Second-level surface flow artificial wetland 9, third-level surface flow artificial wetland 10, fourth-level surface flow artificial wetland 11 and infiltration system 14, decentralized villagers' living and breeding sewage through the pipe network centralized main water inlet pipe 1 It is connected with the grid pool 2 and the adjustment pool 3 in sequence, and the adjustment pool 3 is connected with the first-level surface flow artificial wetland 5 through the "⊥"-shaped opening water distribution pipe 4 (aperture 3mm), and the first-level surface flow artificial wetland 5. Connect with the second-level surface flow constructed wetland 9 thr...

Embodiment 2

[0034] The distributed farmer's living and breeding sewage in a water collection area in a rural area in southern my country is selected as the treatment object. There are 45 households in this area, with a permanent population of 158, 15 pig farmers, and about 1,000 pigs. There are septic tanks and biogas tanks for primary treatment of sewage and aquaculture sewage respectively, but the sewage cannot be discharged up to standard after treatment. According to the present invention, the combined advanced treatment project of the constructed wetland and the infiltration system is built near the low-lying farmland, which can realize the centralized drainage pipe network and self-flowing transportation (no need to provide power) for rural life and aquaculture sewage biogas tank treatment. The design treatment project accepts a total hydraulic load of about 40t / d, and the effluent water quality complies with the first-class B standard of the "Pollutant Discharge Standards for Urban S...

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Abstract

The invention discloses a method for advanced treatment of rural sewage by combining an artificial wetland and a percolation system. At the same time, the device for rural sewage treatment is disclosed. The sewage is collected into the main water inlet pipe through the collection pipe network. The first, second, third and fourth surface flow artificial wetlands are connected in turn through the overflow weir, and then connected to the horizontal subsurface flow infiltration system through the "∟" type overflow drainage pipe. After the filter system perforates the "Ш" type water collection pipe, it discharges the treated water up to the standard through the "─" type direct current drainage pipe. This method is easy to operate and maintain, has landscape effects and economic benefits, simple structure, low investment, and realizes decentralized rural Efficient treatment of domestic and aquaculture sewage to achieve effective protection of the rural ecological environment.

Description

technical field [0001] The invention belongs to the technical field of rural sewage treatment, and specifically relates to a method for advanced treatment of rural sewage by combining artificial wetlands and infiltration systems, and also relates to a device for advanced treatment of rural sewage by combining artificial wetlands and infiltration systems, which is suitable for rural decentralized For domestic and aquaculture sewage treatment, this sewage treatment process is low in cost and simple in operation. The front and rear treatment units in the system are sequentially set with elevation differences to realize zero-power operation of the entire treatment device, which can effectively improve the rural ecological environment and is suitable for rural promotion and application. Background technique [0002] At present, the discharge of rural sewage in my country continues to increase, becoming the main source of nitrogen and phosphorus pollution in many watersheds, leadin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 刘锋吴金水李红芳肖润林王迪张雄
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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