ZHOUJia-zhong,XUJin-long,YULin-jing,et al.Research and Practice of Decentralized Urban Sewage Treatment for Ecological River Supplement[J].China Water & Wastewater,2024,40(4):117-122.
Research and Practice of Decentralized Urban Sewage Treatment for Ecological River Supplement
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第4期
Page:
117-122
Column:
Date of publication:
2024-02-17
- Keywords:
- decentralized treatment; centralized treatment; black-odorous water; recycling; ecological water supplement; watershed management
- Abstract:
- In order to alleviate the contradiction between centralized sewage treatment and ecological water supplement, a decentralized sewage treatment mode for water supplement of “in-situ treatment and on-site reuse” is adopted in Qingdao west coast new area. Through the construction of 7 decentralized sewage treatment facilities with total treatment capacity of 4.55×104 m3/d, sewage treatment, reuse and ecological water supplement have been realized. The actual operation results show that the effluent quality of each sewage treatment facilities are superior to level quasi-Ⅳ criteria in Environmental Quality Standards for Surface Water (GB 3838-2002). It effectively solves the problems of insufficient urban inland river runoff, large land occupation and high investment of “centralized treatment and remote water transfer” mode, so as to realize water quality and resource recycling. The decentralized sewage treatment facilities are built underground, effectively avoiding the adverse impact on the surrounding areas. Through the addition of intelligent water management system, the intelligent management and control of decentralized sewage treatment facilities are realized, and the management efficiency is improved. The sewage treatment mode of “in-situ treatment and on-site reuse” not only solves the problem of sewage increment, realizes the flexible disposal of regional sewage, but also recovers the ecological quality of river water bodies, thus obtaining good environmental, social and economic benefits.
Last Update:
2024-02-17