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An artificial soil infiltration system for the treatment of rural distributed sewage

A kind of artificial soil and decentralized technology, applied in the field of artificial soil infiltration treatment system, can solve the problems of low nitrogen and phosphorus removal efficiency, decentralized wastewater pollution, hindering the promotion of the system, etc., to reduce the hydraulic dead zone, prolong the effective operation time, No clogging effect

Inactive Publication Date: 2015-08-12
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Soil infiltration system, as a sewage treatment system that meets the above conditions, has been widely used in rural areas, but its shortcomings of low nitrogen and phosphorus removal efficiency, large area and easy clogging hinder the further promotion of this system. Therefore, Research and development of a new type of artificial soil infiltration system with high nitrogen and phosphorus removal capacity, small footprint, and stable operation has become an inevitable way to effectively solve the problem of rural decentralized wastewater pollution

Method used

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  • An artificial soil infiltration system for the treatment of rural distributed sewage
  • An artificial soil infiltration system for the treatment of rural distributed sewage

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Experimental program
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specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 and figure 2 To illustrate this embodiment, the outlet water from the sedimentation tank 1 enters the artificial soil infiltration system 3 from the outlet pump 2 through the outlet pipe 1-1, distributes water evenly through the water distribution pipe 3-1, and the sewage enters the water collection area after being treated by the soil layer 3-2 3-3, finally flows into the water collection well 4 through the outlet pipe 3-4, and the treated water is pumped out of the system through the outlet pump 4-1 for reuse.

specific Embodiment approach 2

[0020] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment, this embodiment is installed on the pipeline between catchment area 3-3 and water collection well 4 backwash pipe 3-5, carry out backwash regularly with high-pressure water, guarantee that outlet pipe 3-4 is unobstructed.

specific Embodiment approach 3

[0021] Specific implementation mode three: combination figure 1 and figure 2 This embodiment is described. In this embodiment, a liquid level gauge 4-2 is provided in the water collection well 4, and a saturated layer and an unsaturated layer are created in the system by changing the water outlet height, which is beneficial to the redox effect of microorganisms and improves the nitrogen content of the system. removal rate.

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Abstract

The invention relates to an artificial soil infiltration system for treating rural distributed sewage. The artificial soil infiltration system is a land treatment device applicable to distributed sewage treatment and treated water recycling. Waste water passes through a sedimentation pool and then flows into the artificial soil infiltration system; through the adsorption of soil in the system, the oxidation reduction of microorganisms and the absorption of plants, various pollutants in the waste water are effectively removed. A main filler of the artificial soil infiltration system is red soil; by adding river sands which are high in permeability coefficient, and crushed bricks and oyster shells which are large in specific surface area, high in porosity and high in adsorption capacity, stability and treatment effects of the system are improved, and the removal efficiency of nitrogen and phosphorus elements is improved. The artificial soil infiltration system has the advantages of simple structure, stability in operation, maintainability, manageability and the like; the treated water can be directly recycled; landscape plants can be planted on the surface layer of the system; the artificial soil infiltration system has a certain landscape effect.

Description

technical field [0001] The patent of the present invention relates to an artificial soil infiltration treatment system for rural decentralized sewage. It belongs to the field of water pollution control. Background technique [0002] There are more than 600,000 administrative villages and more than 2.5 million natural villages in China, where more than 200 million peasant households and nearly 800 million people live. There is a huge amount of sewage discharge, most of which are directly discharged into surrounding water bodies without treatment, causing serious damage to the ecological environment. At the same time, there are still a considerable number of small-scale livestock farms in the vast rural areas. The wastewater from these scattered farms is only discharged on the spot through simple anaerobic fermentation, which has caused serious damage to the local air, water and soil environment. pollute. [0003] Rural decentralized wastewater has the characteristics of sma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/32C02F1/28
Inventor 刘超翔董健王振廖德润
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI