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《Journal of Hydroelectric Engineering》 2013-01
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Study on desorption model of soluble matters in static water

XU Wensheng1,CHEN Li2,LIU Xiaolu1,ZHANG Pingcang1(1.Changjiang River Scientific Research Institute,Wuhan 430010;2.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072)  
Aiming at the micro interface processes of soluble matters erosion in rivers,the desorption process of soluble matters in static water was analyzed in this study.It was indicated that this is a coupled process of diffusion and ion exchange.Through theoretical analysis,a mathematical equilibrium desorption model of soluble matters was established and verified experimentally using Ca2+ as the representative ion of soluble matters in the static state test results.The verification shows that this is an effective model,and especially,it can accurately describe the effects of initial electrolyte and sediment concentration on the desorption in solution.Thus,the model would provide a theoretical basis for the study of soluble matters erosion in rivers.
【Fund】: 国家自然科学基金项目(10672125);国家自然科学基金重点项目(10932012)
【CateGory Index】: TV14
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