Characteristics of pollutant transport influenced by emergent transfer of downstream polluted water: A case study of Xiaolangdi Reservoir, China

4th International Conference on Water Resource and Environment

地球科学;生态环境科学

Yu, Z.Z.^1 ; Zhang, L.^2 ; Zhang, J.J.^1 ; Xia, R.L.^2 ; Zhu, H.^3

Water Resources Protection and Research Institute, Yellow River Basin Water Resources Protection Bureau, Zhengzhou

450004, China^1

Yellow River Institute of Hydraulic Research, YRCC, Zhengzhou

450003, China^2

College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing

210098, China^3

关键词: Advection;    Diffusion;    Emergency operations;    Emergency response;    Peak concentrations;    Pollutant concentration;    Pollutant transport;    Sudden water pollutions;    Xiaolangdi reservoir;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/191/1/012103/pdf
DOI  :  10.1088/1755-1315/191/1/012103

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sudden water pollution in the Yellow River have brought serious economic and social losses to the basin. To better study the characteristics of pollutant transport due to aforementioned water pollution downstream of Xiaolangdi Reservoir, a mathematical model coupling of rainfall-runoff, hydrodynamic and advection-diffusion simulation was established. The emergency response to pollutant transport was analyzed by adjusting discharge of the Xiaolangdi Reservoir. The results show that the discharge is non-linearly related to the arrival time of pollutant at some important sections such as the downstream water intakes, duration and peak concentration. Moreover, compared with the previous data, the discharge from Xiaolangdi Reservoir reduced, while pollutant's arrival time was relatively longer, which means emergency response should take more time. However, the dilution for pollutant concentration decrease relatively as discharge increases. The results can be used for reference considering scientific emergency operation in Xiaolangdi Reservior to deal with sudden water pollution downstream.