Method for performing surface slow-rate infiltration land treatment on rural domestic wastewater

A slow infiltration, domestic sewage technology, applied in the centralized treatment of domestic sewage in small towns, rural aquaculture sewage, and sewage treatment fields, which can solve the problems of high energy consumption, professional operation and management, and complex process.

Inactive Publication Date: 2014-03-19
CHENGDU UNIV
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Problems solved by technology

[0003] The existing rural domestic sewage treatment technology close to the present invention has the following main defects: (1) The domestic sewage treatment method adopted is mainly through the civil engineering mode of large-scale urban sewage treatment plants, which includes civil engineering pools, machine rooms, Equipment, etc., mainly through the design of anaerobic and aerobic p

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  • Method for performing surface slow-rate infiltration land treatment on rural domestic wastewater
  • Method for performing surface slow-rate infiltration land treatment on rural domestic wastewater
  • Method for performing surface slow-rate infiltration land treatment on rural domestic wastewater

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Embodiment Construction

[0034] See figure 1 , first determine the general layout of the system and the laying position of the pipeline according to the distance between rural households and the local environmental conditions; then carry out civil construction, dig trenches, lay sewage pipelines or build underground channels with brick masonry, and select appropriate filter The net is installed in the dry-wet separation tank; after the sewage enters the dry-wet separation tank, it undergoes natural unpowered filtration, and the filtrate is lifted by gravity flow or by a pump to the collection sedimentation tank by a PVC pipe with a bell mouth; the collection sedimentation tank is composed of water inlet, overflow pipe, sludge cleaning hole, vent hole, titration valve and sludge discharge pipe, which can be adjusted in time to discharge sewage to the infiltration ditch; the infiltration ditch is regularly distributed in a matrix network in the forest with a certain slope, and Check regularly to preven...

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Abstract

The invention discloses a method for performing surface slow-rate infiltration land treatment on rural domestic wastewater and belongs to sewage treatment (CO2F). The problems that centralized treatment of the rural domestic wastewater is difficult because the rural infrastructure falls behind, the capital is in shortage and the traditional treatment process is complex are solved. The technology mainly comprises three systems, namely a dry-wet separation pool, a collection and sedimentation tank and a surface slow rate infiltration ditch, so that economical, high-efficiency and energy-saving treatment on the sewage can be realized. The method has the advantages of low one-off infrastructure investment, low operating cost, simplicity and convenience in management, stable long-term operation effect and the like, and quasi unmanned operation can be realized. The method is especially suitable for centralized treatment of rural medium/low-concentration domestic wastewater in rolling countries in the middle west and also can be suitable for centralized treatment of rural aquaculture wastewater and domestic wastewater in small towns.

Description

(1) Technical field: [0001] The invention relates to a rural domestic sewage treatment technology, which is especially suitable for the centralized treatment of middle and low concentration domestic sewage in the hilly areas of the central and western regions, and can also be applied to the centralized treatment of rural breeding sewage and domestic sewage in small towns, which belongs to the treatment of sewage class (C02F). (two) background technology: [0002] At present, water pollution has become one of the severe challenges facing my country's sustainable development. For a long time, the focus of my country's sewage treatment has been mainly on urban domestic sewage and industrial point source pollution, while the water pollution problem in the vast rural areas has not received sufficient attention, and rural water pollution is serious. At present, there are more than 600,000 administrative villages and more than 2.5 million natural villages in China, where more than...

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Application Information

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IPC IPC(8): C02F9/14
Inventor 曾永刚黄正文苏蓉第宝锋
Owner CHENGDU UNIV
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