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

A technology for domestic sewage and treatment systems, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., which can solve the problem of lack of aerobic and anoxic environments and unsatisfactory denitrification effects. and other problems, to achieve a good oxygen-deficient environment, increase the impact load resistance, and achieve a good denitrification effect.

Inactive Publication Date: 2017-10-31
HUAZHONG AGRI UNIV +1
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AI Technical Summary

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 domestic sewage intensive deep decontamination and denitrification treatment system and method designed by the present invention include an ultra-deep anaerobic pond, a tidal flow artificial wetland, and a land enhanced infiltration system, wherein the ultra-deep anaerobic pond mainly performs precipitation and The hydrolysis and acidification reaction removes particulate pollutants and macromolecular organic pollutants; the tidal flow artificial wetland adopts the tidal upflow operation method to enter water, which increases the activity of microorganisms and further improves the removal of pollutants; the enhanced land infiltration system consists of two stages The structure is superimposed, and the middle is separated by impermeable non-woven geotextiles. The filler of the first-stage infiltration system is from top to bottom: soil, peat and / or coarse sand, gravel, and the filler of the second-stage infiltration system From top to bottom: coarse sand, peat and / or coarse sand, gravel. The invention has high treatment load, good decontamination and nitrogen removal effects, low treatment cost and simple 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, due to the relatively dispersed population in rural and urban areas of our country and the low economic level, 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 c...

Claims

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Application Information

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Patent Type & Authority Patents(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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