WUWei-long,CAIRan,WANGZheng-shu,et al.Ecological Restoration and Construction of a Black and Odorous River by Close-to-nature River Method[J].China Water & Wastewater,2022,38(14):126-132.
黑臭河道近自然河流的生态恢复与构建
- Title:
- Ecological Restoration and Construction of a Black and Odorous River by Close-to-nature River Method
- Keywords:
- close-to-nature river; black and odorous river; ecological restoration; source control and sewage interception
- 摘要:
- 西南地区某黑臭河道治理工程，在实施一期控源截污工程后，水质得以改善但波动明显。针对河道黑臭反复的问题，采用近自然河流生态修复的理念，开展生态空间的构建与恢复，强化河流自我修复功能。工程实施后，河道水质稳定达到地表Ⅳ类水标准，浮游植物密度约92×104 cells/L，蚌、螺、鱼、虾等水生动物恢复出现，呈现较好的自然生态特征，成为黑臭水体达标后持续向好的示范项目。
- Abstract:
- After the implementation of phase Ⅰ source control and sewage interception project in a black and odorous river management project in southwest China, the water quality was improved but fluctuated significantly. Aiming at the recurrent black and odorous problem, the concept of close-to-nature river ecological restoration is adopted to carry out the construction and restoration of ecological space and strengthen the self-restoration function of the river. After implementation, the river water quality stably realize level Ⅳ criteria of the Environmental Quality Standard for Surface Water (GB 3838-2002). The phytoplankton density is about 92×104 cells/L, and the aquatic animals such as mussels, snails, fish, shrimp have recovered, showing good natural ecological characteristics. It becomes a demonstration project for continuous improvement of black and odorous water after reaching the standard.
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