Sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device

A technology of constructed wetlands and treatment devices, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of blockage without good countermeasures, blockage of wetland system, etc., to achieve It is beneficial to the removal of organic matter and denitrification, ensuring the quality of effluent water and the effect of uniform effluent water

Inactive Publication Date: 2010-02-03
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the above clogging prevention technologies have achieved certain results

Method used

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  • Sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device
  • Sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device
  • Sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device

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Embodiment 1

[0049] Embodiment 1: as figure 1 As shown, it is the general plan of the sponge-enhanced constructed wetland, including the pretreatment area, the main reaction area and the water outlet area. Wherein the pretreatment area includes the water inlet pipe 17, the water inlet distribution pipe 16, the sponge 9, the air inlet pipe 10, and the microporous aerator 15; It is formed in series, including 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 zone 14, etc.; The zone includes the outlet pipe 8 .

[0050] like figure 2 Shown, the device of pretreatment unit has water distribution pipe 16 (seeing image 3 ), sponge 9, intake pipe 10, microporous aerator 15, etc. Among them, the domestic sewage is collected by the sump and then lifted by the lift pump into the constructed wetland treatment system. The...

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Abstract

The invention relates to a sponge anti-clogging strengthening compound flow constructed wetland domestic sewage treatment device, which comprises a pretreatment region, a main reaction region and an exhalant region from left to right, wherein the pretreatment region comprises an intake pipe, a water distributor, a sponge, an air inlet pipe and a porous aerator; the main reaction region is formed by connecting three-stage vertical flow constructed wetland in series, i.e. a first unit, a second unit and a third unit which are separate; 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; the top of the biological porcelain granule layer is covered with an aquatic plant root region; gravel and a steel slag layer are distributed in the second unit; the tops of the gravel and the steel slag layer are provided with an aquatic plant root region; a zeolite layer is distributed in the third unit; the top of the zeolite layer is provided with an aquatic plant root region; each unit is divided into a left grid and a right grid; the left grid is higher than the right grid; the pretreatment region and the main reaction region are connected by a perforated water-distribution plate which is arranged at one end of the gravel water-distribution layer; and the exhalant region comprises anexhalent pipe. 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 domestic sewage treatment device for a sponge anti-blocking reinforced composite flow artificial wetland. 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 sl...

Claims

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Application Information

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IPC IPC(8): C02F3/00
Inventor 周雪飞张亚雷苏鸿洋周婧斐孟伟忠
Owner TONGJI UNIV
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