Device of multi-medium subsurface infiltration rural sewage disposal system and method thereof

A sewage treatment system and underground infiltration technology, applied in the direction of osmosis/dialysis water/sewage treatment, etc., to achieve the effect of increasing hydraulic load rate, enhancing chromatographic separation effect, and preventing easy clogging
CN101456608BInactive Publication Date: 2010-10-27PEKING UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PEKING UNIV
Publication Date
2010-10-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device and a method of a multi-medium subsurface infiltration village sewage treatment system. The device consists of a breathable layer, a capillary tube infiltration layer, a permeable layer, a multi-medium module layer, a water distribution tank, a water collection layer, an impervious layer and a polyurethane sieve. The details on the structure and the method are defined in the description. The device and the method have the advantages that: the water distribution by capillary tubes strengthens the chromatographic separation effect; and the introduction of a multi-medium ecological filtering layer into a gravity filtration state solves a easy blockage problem while reducing land occupation and improving hydraulic load. Under conditions of micro-power and a hydraulic load of 15 to 25cm / m<2>d, the multi-medium subsurface infiltration system can remove 85 to 95 percent of COD, 90 to 98 percent of NH3-N and 90 to 99 percent of TP, thereby realizing deep treatment of village domestic sewage and recycling.
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Description

technical field

[0001] The invention belongs to the field of sewage treatment, in particular to a device and method for a multi-media underground infiltration rural sewage treatment system.

[0002] Background technique

[0003] Underground infiltration sewage treatment technology uses the biological, chemical and physical effects of the infiltration medium to degrade the organic matter in the sewage, fix the inorganic salts, and utilize nutrients such as nitrogen and phosphorus as resources. It has deep phosphorus and nitrogen removal, With the advantages of convenient operation and management and low operating costs, it is a sewage ecological treatment technology with application potential. Therefore, the technology of underground sewage infiltration and reclaimed water reuse has been developed successively (Patent No. 96115446.2), the method and system for strengthening water-distributing underground infiltration sewage treatment (Patent No. 02130946.9), and the strengthe...

Claims

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