REASON ANALYSIS AND IMPROVEMENT MEASURES FOR LOW POLLUTANTS CONCENTRATION OF INFLUENT WATER OF URBAN SEWAGE TREATMENT PLANTS

ZHOU Yi-xin; LI Ji; WANG Yan; ZHENG Kai-kai; WANG Xiao-fei; ZHI Yao

doi:10.13205/j.hjgc.202112004

Volume 39 Issue 12

Mar. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(12): 25-30

ZHOU Yi-xin, LI Ji, WANG Yan, ZHENG Kai-kai, WANG Xiao-fei, ZHI Yao. REASON ANALYSIS AND IMPROVEMENT MEASURES FOR LOW POLLUTANTS CONCENTRATION OF INFLUENT WATER OF URBAN SEWAGE TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(12): 25-30. doi: 10.13205/j.hjgc.202112004

Citation:

ZHOU Yi-xin, LI Ji, WANG Yan, ZHENG Kai-kai, WANG Xiao-fei, ZHI Yao. REASON ANALYSIS AND IMPROVEMENT MEASURES FOR LOW POLLUTANTS CONCENTRATION OF INFLUENT WATER OF URBAN SEWAGE TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(12): 25-30. doi: 10.13205/j.hjgc.202112004

Citation:

ZHOU Yi-xin, LI Ji, WANG Yan, ZHENG Kai-kai, WANG Xiao-fei, ZHI Yao. REASON ANALYSIS AND IMPROVEMENT MEASURES FOR LOW POLLUTANTS CONCENTRATION OF INFLUENT WATER OF URBAN SEWAGE TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(12): 25-30. doi: 10.13205/j.hjgc.202112004

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REASON ANALYSIS AND IMPROVEMENT MEASURES FOR LOW POLLUTANTS CONCENTRATION OF INFLUENT WATER OF URBAN SEWAGE TREATMENT PLANTS

doi: 10.13205/j.hjgc.202112004

ZHOU Yi-xin¹,
LI Ji^{2,3,4
,
,},
WANG Yan^2,5,
ZHENG Kai-kai^2,5,
WANG Xiao-fei⁵,
ZHI Yao⁵

1. Wuxi Public Utilities Industrial Group Co., Ltd, Wuxi 214001, China;
2. School of Environmental and Civil Engineering,Jiangnan University, Wuxi 214122, China;
3. Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi 214122, China;
4. Collaborative Innovation Center of Water Treatment Technology & Material of Jiangsu Colleges, Suzhou 215009, China;
5. Wuxi Puhui Environmental Technology Co., Ltd, Wuxi 214028, China

Received Date: 2021-02-09
Available Online: 2022-03-30
Publish Date: 2022-03-30

Abstract

Abstract

The low pollutants concentration of influent water from urban wastewater treatment plants is one of the key problems to be solved for improving quality and efficiency of sewage treatment. Taking a sewage treatment plant in Wuxi City as an example, based on water quality analysis and research data, the cause of low concentration of influent water was analyzed by water balance triangle method and remedial measures were put forward. The results showed that 28.9% and 9.8% of groundwater or river water infiltration and rainwater infiltration were respectively in the inflow of sewage treatment plant. Leakage of sewage pipeline network and dilution of low concentration industrial wastewater were the main reasons for low concentration of water inflow in sunny days, while the main reasons for low concentration of water inflow in rainy days were mixed rainwater in pipeline network of residential quarter, then COD and BOD₅ decreased by 65.4% and 52.9% respectively. In view of the above problems, this paper put forward four improvement measures, such as improving the drainage management system and mechanism, implementing the three pipe separation rectification for industrial enterprise drainage, refining the detection, investigation and effective repair of pipe network leakage, strengthening the acceptance and quality supervision of the pipe network, and reducing the water level of the pipe network to enhance influent concentrations of the urban wastewater treatment plant.
- wastewater treatment plant(WWTP),
- influent concentration,
- wastewater pipe network,
- rectification measures,
- quality and efficiency improvement

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References(17)

References

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