A/O/E (anaerobic/aerobic/endogenous respiration) composite treatment system for domestic sewage

A composite treatment and domestic sewage technology, applied in water/sludge/sewage treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of water quality impact, denitrification, phosphorus removal and other problems , to achieve low maintenance and operation costs, good effluent quality, and improved economic benefits

Inactive Publication Date: 2013-12-11
NANYANG NORMAL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology can achieve good results in the removal of COD in domestic sewage, and basically meets the national GB18918-2002 "Urban Sewage Treatment Plant Pollutant Discharge Standard", but it is different from the national GB / T18921-2002 "Urban Sewage Regeneration" Compared with the requirements of "Water Quality Standards", there is still a big gap, especially the effect of denitrification and phosphorus removal is poor, which has a great impact on the quality of treated water

Method used

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  • A/O/E (anaerobic/aerobic/endogenous respiration) composite treatment system for domestic sewage
  • A/O/E (anaerobic/aerobic/endogenous respiration) composite treatment system for domestic sewage

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Embodiment Construction

[0021] Such as figure 1 As shown, the A / O / E domestic sewage composite treatment system of the present invention includes a sewage separation pool 1, a biodegradation pool 2, a biological acidification pool 3 and an oxidation pool 4 connected in sequence, and the oxidation pool 4 is connected with two wetland stages processing unit. The wetland two-level treatment unit is composed of a first-level vanilla and bahia grass intercropping wetland 9 and a second-level biological pond 10. The intercropping wetland 9 is mainly used for denitrification and phosphorus removal of domestic sewage, and at the same time has the ability to remove residual COD Function, it includes a ditch 9-1 for passing sewage, bahia grass planting belts 9-2 are set on the ground on both sides of the ditch 9-1, and an anti-seepage layer is set on the bottom and side walls of the ditch 9-1 , sandstone layer and soil layer are arranged on the bottom of the ditch, and vetiver is planted in the ditch 9-1. Th...

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Abstract

The invention discloses an A / O / E (anaerobic / aerobic / endogenous respiration) composite treatment system for domestic sewage. The system comprises a sewage separation pool, a biodegradation pool, a biological acidification pool and an oxidation pool, wherein the oxidation pond is communicated with a wetland two-stage treatment unit. The system is capable of thoroughly removing COD (chemical oxygen demand) matters in domestic sewage, and effectively removing organic nitrogen, ammonia nitrogen and phosphorus in domestic sewage by adopting a mode of anaerobic-aerobic combination and wetland two-stage treatment, thus reliably ensuring that the treated water body achieves GB / T18921-2002 'urban sewage recycling water quality standards' of the national regulations; meanwhile, the system has the advantages of being simple in configuration, low in cost, good in social benefits, and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an A / O / E domestic sewage composite treatment system. Background technique [0002] At present, water pollution has become one of the major factors endangering the national economy and people's livelihood. According to the inspection data of the State Environmental Protection Administration, the overall pollution status of the four major river basins of the Yellow River, Yangtze River, Huaihe River and Haihe River has become the norm, and 26% of the seven major water systems have water quality of five 7 of the 9 major lakes are Class 5 and Class 5, and Class 5 and Class 5 water is "wastewater" that cannot even be used for agricultural water, let alone used for drinking and contacting the human body ! [0003] Although the amount of urban domestic water is much lower than the amount of agricultural water and industrial water, the pollution it causes cannot be ignored....

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/32C02F3/30
CPCY02W10/10
Inventor 李玉英杨栋材聂天南张荣奇黄思良陈兆进朱啸世曹苑楠赵晶晶
Owner NANYANG NORMAL UNIV
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