Transport of bicomponent contaminant in free-surface wetland flow
Presented in this paper is a theoretical analysis for a pulsed bicomponent contaminant emission into a free-surface wetland flow.Basic equations are introduced for bicomponent contaminant transport in wetland flow under the combined action of advection, mass dispersion, and ecological reaction at phase average scale.The effect of ecological reaction is separated from hydrodynamic effect via a set of widely used transform.Analytical solution for evolution of depth-averaged concentration is rigorously derived and illustrated, with a limiting case covering the known solution for single component contaminant transport.It is found that the depth-averaged species concentration of bicomponent contaminant can approach an equlibrium status which is determined by distribution coefficient.
Contaminant dispersion Bicomponent contaminant Wetland hydrodynamics Envrionmental risk assessment
CHEN Bin ZENG Li CHEN Guo-qian WUYi-hong Jl Ping ZHAO Yi-jun WU Zi
State Key Laboratory of Water Environment Simulation, School of Environment,Beijing Normal Universit State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of W State Key Laboratory of Turbulence and Complex Systems, College of Engineering,Peking University, Be
国内会议
第十一届全国水动力学学术会议暨第二十四届全国水动力学研讨会并周培源诞辰110周年纪念大会
无锡
英文
45-53
2012-08-25（万方平台首次上网日期，不代表论文的发表时间）