ZHOU Da-wei,FENG Yun-hai,LI Zhi-dong.Design and Thinking of Rainwater and Sewage Diversion Transformation in Chang’an Town, Dongguan City[J].China Water & Wastewater,2022,38(14):64-70.
Design and Thinking of Rainwater and Sewage Diversion Transformation in Chang’an Town, Dongguan City
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第14期
Page:
64-70
Column:
Date of publication:
2022-07-17
- Abstract:
- Modie River is an important node for Dongguan to construct ecological network and develop ecological city. Its water quality pollution and water ecosystem destruction are relatively serious. Therefore, it is urgent to remedy the Modie River system. The present situation of the drainage system of Modie River basin in Chang’an Town was analyzed, and the treatment ideas and solutions of rainwater and sewage diversion transformation were proposed. First, the system was inspected completely, the wrong and mixed connection was transformed, and the channel for rainwater, surface water and other external water to enter the sewage system was completely cut off. Second, the municipal pipe network was improved, and the coverage of sewage pipe network was increased. Third, existing pipe sections were dredged and repaired to ensure the unobstructed flow of the pipe network. Finally, after the formation of separate rain and sewage systems on municipal roads, rainwater and sewage diversion transformation and drainage outlet remediation were carried out, and small total drainage outlet for interception was set for combined areas and drainage outlets were difficult to transform. At present, 90% of the construction of the project has been completed, and a complete rainwater and sewage diversion system has been formed within the construction area. The traceability of discharge outlet has been preliminarily completed, and BOD5 in influent of relevant sewage plants is always above 180 mg/L.
Last Update:
2022-07-17