Numerical Modelling of 137Cs Transport Processes in River System
The release of artificial radionuclide 137Cs from nuclear power plants is a potential hazard for water environment.A numerical two dimensional model to simulate the transport of 137Cs in river has been developed.The model consists of the hydrodynamic sub model,the sedimentological sub model,including several different particle size classes,and deposition and erosion of suspended sediments simultaneously,and the chemical sub model for radionuclide transport in water system.The exchanges of radionuclides between the liquid and solid phases are described in terms of kinetic transfer coefficients.The field measurements of sediment concentration and 137Cs activity of 2006 are used for the model validation and the simulation results agree with the measurements well.The model is applied to simulate the transport processes of 137Cs discharged from a planned nuclear power plant sited along the Yangtze River.The model results can reflect the detailed of 137Cs activity levels in water,suspended matter and bed sediments in the vicinity of the outlet.
numerical model 137Cs Yangtze River sediment dispersion
Yanxin Zhao Yanhong Xu Wang Yonggui Hong Peng
School of Resource and Environmental Science Wuhan University Wuhan, China School of Water Resources and Hydropower Engineering Wuhan University Wuhan, China
国际会议
兰州
英文
1-6
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）