Modular subsurface infiltration structure and modular subsurface infiltration structure method

Abstract

The invention discloses a modular subsurface infiltration structure. The periphery of the modular subsurface infiltration structure is fixed by adopting a frame structure so as to form a body; a brick infiltration structure is arranged on an upper surface layer of the body; a grit soil layer is arranged at the lower part of the brick infiltration structure; a microporous filtering membrane is arranged at the lower part of the grit soil layer and is of a structure provided with a plurality of concave pits; charcoal active powder is paved in each concave pit; a cured sand soil layer is arranged at the lower part of the microporous filtering membrane; a separable dense clay layer is arranged at the lower part of the cured sand soil layer. The modular subsurface infiltration structure which is in modular design can be singly applied or applied in a combination manner, wherein the microporous filtration is carried out by virtue of the microporous filtering membrane; the absorption is carried out by virtue of the charcoal active powder, so that the purpose of sewage purification is realized.

Description

technical field [0001] The invention relates to a modular underground infiltration structure and method, belonging to the field of sewage purification. Background technique [0002] With the rapid economic growth of our country and the continuous improvement of urbanization level, the problem of water pollution is becoming more and more serious. The results of water quality monitoring conducted by the water conservancy department on nearly 700 large and medium-sized rivers across the country show that 50% of the river sections are polluted, and 10% of the river sections are seriously polluted. The environmental conditions of the main lakes are also not optimistic, with serious nitrogen and phosphorus pollution, leading to prominent eutrophication problems. According to statistics, my country's annual economic losses due to insufficient water supply are as high as tens of billions of yuan, and more than 36 billion tons of sewage are discharged into surface water systems ever...

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Problems solved by technology

[0005] In order to solve such problems as (1) strong dependence on pretreatment; (2) cannot be reused; (3) cannot be cleaned up in time; (1) after a period of use, pollutants accumulate, resulting in percolation The problem that the purification effect of the structure gradually decreases, the present invention provides a modular underground infiltration structure and method

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