QIANMing,QIANFei-yue,LIYong,et al.Long-term Treatment Strategy of Decentralized Rural Domestic Sewage in East Taihu Lake Island[J].China Water & Wastewater,2022,38(23):23-30.
Click Copy

Long-term Treatment Strategy of Decentralized Rural Domestic Sewage in East Taihu Lake Island

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第23期 Page: 23-30 Column: Date of publication: 2022-12-01
Author(s):
QIAN　Ming1;  QIAN　Fei-yue1; 2;  LI　Yong1; 2;  XU　Si-xuan1;  QIAN　Bin1;  LIU　Feng1; 2
（1. College of Environmental Science and Engineering， Suzhou University of Science and Technology， Suzhou 215009， China； 2. National and Local Joint Engineering Laboratory of Urban Domestic Sewage Resource Utilization Technology， Suzhou 215009， China）
Keywords:
island in Taihu Lake;  decentralized rural domestic sewage;  sewage treatment facility;  partition and classification management;  long-term operation
Abstract:
To effectively protect the water environment of Taihu Lake and strengthen the treatment of rural domestic sewage, a field investigation was carried out in a large island located in East Taihu Lake to investigate the water quality and quantity characteristics of local decentralized rural domestic sewage, collection pipe network layout and operation of treatment facilities. According to the protection requirements of ecological sensitive areas, the partition and classification management scheme of decentralized sewage treatment facilities was developed. It was suggested to strengthen the oil separation pretreatment of catering wastewater in farmhouse tourism regions, and constructed wetlands should be added at the end of the facilities that discharged tail water to Taihu Lake and rivers to improve their impact resistance and nitrogen and phosphorus removal performance. In addition, the energy consumption of the facilities was reduced by more than 25% and the long-term operation rate exceeded 95% by establishing an intelligent regional water management platform and dynamically matching the unit power consumption of the facilities with the influent quality and quantity.
Last Update: 2022-12-01