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Filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system

A technology for constructed wetlands and domestic sewage, applied in biological water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc.

Inactive Publication Date: 2011-07-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above clogging prevention technologies have achieved certain results in practice, clogging in wetland systems is still a common phenomenon. Countermeasures

Method used

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  • Filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system
  • Filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system
  • Filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system

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Embodiment 1

[0050] Embodiment 1: as figure 1 As shown, it is the general plan of the filter cloth reinforced constructed wetland, including the pretreatment area, the main reaction area and the water outlet area. The pretreatment area includes a water inlet pipe 16, a filter bag 9, a frame 17, an air inlet pipe 10, and a microporous aerator 15; the main reaction area is the main part of the composite flow artificial wetland, which is formed by connecting three vertical flow artificial wetlands at intervals in series. It consists of biological ceramsite layer 1, gravel and steel slag layer 2, zeolite layer 3, gravel water distribution layer 4, perforated water collection pipe 6, sampling valve 7, perforated water distribution board 11, aquatic plant root system area 14, etc.; the water outlet area includes Triangular weir 5 and outlet pipe 8.

[0051] Such as figure 2 As shown, the system of the pretreatment unit has water inlet pipe 16, two sets of filter bag 9 with frame 17, air inle...

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Abstract

The invention relates to a filtration-fabric anti-clogging strengthening compound flow constructed wetland domestic sewage treatment system comprising a pretreatment region, a main reaction region and an exhalant region, wherein the pretreatment region comprises a framed tube, an intake pipe, a filter bag, an air inlet pipe and a porous aerator; the main reaction region is formed by connecting a first unit, a second unit and a third unit in series; the bottom of the main reaction region is provided with a gravel water-distribution layer; a biological porcelain granule layer is distributed in the first unit; gravel and a steel slag layer are distributed in the second unit; a zeolite layer is distributed in the third unit; each unit is divided into a left grid and a right grid; the left grid is higher than the right grid; the top of an aquatic plant root region in the left grid is provided with a triangular weir; the pretreatment region and the main reaction region are connected by a perforated water-distribution plate which is arranged at one end of a gravel water-distribution layer; and the exhalant region comprises an exhalent pipe which is arranged at one side of the main reaction region. The invention has the advantages of high pollutant removal rate, stable system operation, greatly improved hydraulic load, small floor area, low operation and maintenance costs, and the like.

Description

technical field [0001] The invention relates to a filter cloth anti-clogging enhanced composite flow artificial wetland domestic sewage treatment system. Background technique [0002] At present, the sewage treatment rate in cities and towns in my country is very low, and most domestic and production wastewater are directly discharged into rivers without treatment, resulting in serious water pollution. The advanced urban sewage treatment technology shows that although the pollutant removal rate is high, the basic investment and operating costs are high, which makes it difficult for many sewage treatment plants to raise funds to build or maintain operation due to high costs. Constructed wetland technology has the main characteristics of good treatment effect, strong ammonia nitrogen removal ability, convenient operation, maintenance and management, low engineering infrastructure and operation costs, and strong adaptability to load changes due to good water quality and low slud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/12C02F3/32C02F3/34
CPCY02W10/10
Inventor 张亚雷周雪飞苏鸿洋周婧斐孟伟忠
Owner TONGJI UNIV
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