Intensive deep decontamination and denitrification treatment system and method for domestic sewage

A domestic sewage and treatment system technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of lack of aerobic and anoxic environment and unsatisfactory denitrification effect and other problems, to achieve a good anoxic environment, increase the impact load resistance, increase the biodegradability and the effect of impact load resistance

Inactive Publication Date: 2015-12-16
HUAZHONG AGRI UNIV +1
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Problems solved by technology

The existing artificial wetlands and land infiltration systems have the characteristics of low cost, low operating costs, and convenient management, and have broad application prospects. However, due to the lack of a good aerobic and anoxic environment, the overall denitrification effect is not ideal

Method used

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  • Intensive deep decontamination and denitrification treatment system and method for domestic sewage

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] like figure 1 A kind of domestic sewage intensive deep decontamination and denitrification treatment system shown includes ultra-deep anaerobic pond 1, tidal flow artificial wetland 5, and enhanced land infiltration system 9, and the internal equipment of described ultra-deep anaerobic pond 1 There is a water outlet pipe 13, the primary sewage outlet 13.1 of the water outlet pipe 13 is connected to the primary sewage inlet 5.1 of the tidal flow artificial wetland 5, and the secondary sewage outlet 5.2 of the tidal flow artificial wetland 5 is respectively connected to the intensified The first inlet 9.1 of the secondary sewage of the land infiltration system 9 is connected with the second inlet 9.2 of the secondary sewage. The first stage infiltration system 14.1 of the filtration system 9, the secondary sewage second inlet 9.2 of the en...

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Abstract

The invention designs an intensive deep decontamination and denitrification treatment system and method for domestic sewage. The intensive deep decontamination and denitrification treatment system comprises an ultra-deep anaerobic pond, a tidal flow constructed wetland and a land enhanced filtration system, wherein the ultra-deep anaerobic pond is mainly used for precipitation and hydrolyze acidification reaction to remove particulate pollutants and macromolecular organic pollutants; the tidal flow constructed wetland adopts a tidal upward flow operation mode for water feeding, improves the activity of microbes and further improves removal of the pollutants; the land enhanced filtration system is formed by stacking two stages of structures which are isolated by water-tight non-woven geotextile in the middle, filler of a first-stage filtration system comprises soil, grass carbon and/or coarse sand and gravel sequentially from top to bottom, and filler of a second-stage filtration system comprises coarse sand, the grass carbon and/or coarse sand and the gravel sequentially from top to bottom. The intensive deep decontamination and denitrification treatment system has the advantages of high treatment load, good decontamination and denitrification effects, low treatment cost and simplicity in operation.

Description

technical field [0001] The invention relates to the technical field of environmental engineering sewage treatment, in particular to an intensive deep decontamination and denitrification treatment system and method for domestic sewage. technical background [0002] Rural and urban domestic sewage has the characteristics of high concentration of organic matter, large daily variation coefficient, and intermittent discharge. If it is directly discharged into rivers and lakes without treatment, it will cause serious water pollution. At the same time, because the rural and urban populations in my country are relatively dispersed and the economic level is low, the centralized treatment of domestic sewage cannot be fully adopted. Therefore, it is very important to choose appropriate and economical sewage treatment technology according to local conditions. The existing artificial wetlands and land infiltration systems have the characteristics of low cost, low operating costs, and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 赵建伟王龙涛单保庆朱端卫张洪刘广龙华玉妹周文兵万小琼蔡建波肖乃东
Owner HUAZHONG AGRI UNIV
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