TANGYing-dong,BAOHan,ZOUXu-tong,et al.Practice and Experience of Drainage System Upgrading and Perfection in Maozhou River Basin[J].China Water & Wastewater,2022,38(10):10-17.
茅洲河流域排水系统提升完善的实践与经验
- Title:
- Practice and Experience of Drainage System Upgrading and Perfection in Maozhou River Basin
- Keywords:
- separation of rainwater and sewage; sewer network investigation; polluted rainwater; drainage culvert regulation
- 摘要:
- 深圳茅洲河流域因排水系统滞后于城市发展、污染排放量大等原因，水体长期严重黑臭。经过2016年启动的第一轮水环境综合整治，实现了流域内旱季污水不入河的阶段目标，但雨季河道污染、污水系统缺陷等问题依然存在。为了实现长制久清，全流域启动了第二阶段的排水系统提升与完善，按照“厂-网-源-河”要素进行系统梳理，提出雨污源头收集完善、传输系统梳理提升、污水厂站韧性连通等对策，实现河道水质稳定达标，入厂污水浓度提升，为流域水环境质量提升、污水系统提质增效提供了可借鉴的治理经验。
- Abstract:
- Compared with the development of the city, the drainage system construction is delayed. Moreover, with large quantity of regional pollution discharge, the Maozhou River basin in Shenzhen had been severely malodorous for a long time. After the first round of water environment comprehensive improvement launched in 2016, the stage goal of preventing sewage from discharging into the river during the dry season was achieved. However, problems such as river pollution during the rainy season, and the sewage system defects still existed. For the long-term cleanliness, it has launched the second phase of drainage system upgrading and perfection. The project was organized according to the investigation of “plant-network-source-river” in the basin, and the countermeasures including rainwater and sewage collection improvement from the sources, transmission system upgrading and the sewage treatment plants connection were proposed. The practice indicated that the stable up-to-standard water quality in the basin and the increase of wastewater concentration in the wastewater treatment plant were achieved. It provided a helpful reference for similar projects.
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