Blocking-proofing fast infiltration system

Abstract

The invention discloses a blocking-proofing fast infiltration system, comprising an impervious wall, an infiltration bed, a permeability pipe, a water collecting pipe, a water distributing channel and a water distributing pipe, wherein, the infiltration bed is arranged in the impervious wall and is composed of a soil layer I, a packing layer I, a packing layer II and a soil layer II from the bottom to top sequentially; the permeability pipe is inserted in the infiltration bed and penetrates through the infiltration bed, and the upper end of the permeability pipe is higher than the top layer of the infiltration bed; the water collecting pipe is arranged at the bottom of the infiltration bed and a limestone layer with 1-3 cm of grain diameter is covered around the water collecting pipe. Thesewage treatment process comprises the following steps: the sewage is discharged into the water distributing pipe and is seeped out from infiltration holes on the water distributing pipe and is infiltrated into an infiltration channel, then by the infiltration effect of ground substance capillary pipes in the infiltration channel, the sewage is spread into mixed ground substances of each layers around sequentially, under the co-actions of ground substance, microorganism and plants, the sewage is purified; the sewage is collected by the water collecting pipe which is arranged at the bottom part of the infiltration bed and is discharged after the sewage is purified. The blocking-proofing fast infiltration system has the advantages of simple structure, low operating cost and the like and is proposed to be popularized and used in a large scale.

Description

technical field [0001] The invention relates to an anti-clogging rapid percolation system, which belongs to the technical field of sewage treatment. Background technique [0002] At present, with the development of economy and society, the environmental problems of water pollution are becoming increasingly prominent, especially the eutrophication of water bodies caused by nitrogen and phosphorus pollution is becoming more and more serious, and the removal of nitrogen and phosphorus pollutants by sewage treatment technology is also proposed. higher requirement. [0003] The sewage soil infiltration treatment system in the prior art is a sewage ecological engineering treatment technology based on ecological principles, which makes full use of the soil animals, soil microorganisms, plant roots and soil that live in the soil below the surface. The physical and chemical properties will purify the sewage. On the one hand, the infiltration system has the characteristics of low in...

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Problems solved by technology

However, it also has shortcomings such as single structure, low hydraulic load, poor denitrification effect, unstable operation, and easy blockage of soil pores.

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