LUOBo,DUAN Ting-heng,ZHOU Min,et al.Application of HEC-RAS in Water Environment Management in Watershed of Jiangjin District[J].China Water & Wastewater,2022,38(19):35-42.
Application of HEC-RAS in Water Environment Management in Watershed of Jiangjin District
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第19期
Page:
35-42
Column:
Date of publication:
2022-10-01
- Abstract:
- To evaluate the efficiency of water environment management measures in watershed of Jiangjin District, Chongqing, a one-dimensional hydrodynamic and water quality model was established with the application of HEC-RAS software. The model was employed to simulate and investigate the water quality parameters including COD, NH3-N, and TP of 8 typical rivers in Jiangjin District during wet and dry seasons after the implementation of phase Ⅰ, short-term and long-term treatment projects. The results showed that the management plans exhibited good performance in pollutants reduction. The water quality of each river after the conduction of the phase Ⅰand the long-term projects could reach the expected targets. However, among the selected 8 rivers, the water quality of Lishi Creek could not achieve the desired standards after carrying out the short-term project, especially in the dry season. Therefore, the water diversion project for Lishi Creek was going to be conducted after analyzing the reasons.The simulation results demonstrated that the project would be effective,with the water quality reaching the class Ⅳ standard for surface water.
Last Update:
2022-10-01