摘要
本文采用泥沙动力学中Rouse等人用来研究泥沙浓度沿垂线分布的装置,对泥沙吸附重金属污染物进行了动态模拟试验.试验分有底泥和无底泥两种情况.研究中发现在Rouse装置的水力、泥沙条件下泥沙吸附重金属污染物达到平衡状态需要6小时以上.由极坐标下的重金属迁移转化数学模型方程,在本文具体试验条件下进行数值求解,计算结果和试验结果吻合良好,说明数学模型是正确合理的,试验是可靠的.计算时依据室内静态试验结果,对动态试验泥沙吸附特性系数进行了分析.选取动态吸附试验的饱和吸附量b、解吸、吸附速率之比K和静态试验的相同.这对于评价室内静态试验成果,利用静态试验成果于天然河流具有一定的参考价值.
Two dynamic modelling experiments, one of which with suspended load and the other with both suspended load and bed mud, were conducted to study heavy metal pollutant adsorption of sediment by use of H. Rouse's device. The equations of heavy metal transport and transformation on the form of polar coordinates are solved. By comparing with the experiments, it is shown that the mathematical model is correct and rational. Some analysis has been made to select dynamic sediment adsorption parameters on the basis of static experiment results in laboratory.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1994年第4期437-447,共11页
Chinese Journal of Hydrodynamics
基金
国家自然科学基金
水利水电科学基金资助项目
关键词
重金属
吸附
数学模拟
动态试验
河流污染
heavy metal, adsorption, mathematical modelling, dynamic experiment.
