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.
Ecological Restoration and Construction of a Black and Odorous River by Close-to-nature River Method
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第14期
Page:
126-132
Column:
Date of publication:
2022-07-17
- Keywords:
- close-to-nature river; black and odorous river; ecological restoration; source control and sewage interception
- 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.
Last Update:
2022-07-17