摘要
本文推导了底泥中污染物输移转化方程。该方程定量地反映了水流强度、床沙级配与底泥污染物迁移转化的关系,描述了河床冲淤过程中底泥污染物时空变化的动力学特性。文中以石油类污染物为例,利用数值方法模拟了底泥污染及冲刷释放现象,并与实验资料进行了比较,计算与实验符合良好,说明本文结果可作为冲积河流底泥污染物输移转化规律研究的基础。
In this paper the transport equation of pollutants in bed sediment was established.The equation quantitatively reflects the factors affecting the fate and transport of pollutants in terms of the flow intensity,bed material size,and channel bed variations.It gives the dynamic characteristics of the temporal and spatial variation of the pollutants absorbed by bed sediment.Application of the equation to the simulation of the fate and transport of the petroleum hydrocarbons was also presented in this paper.Comparisons between simulations and observations indicate that results obtained in this paper may be the basis of the study on the transport of pollutants in bed sediments of alluvial rivers.
出处
《泥沙研究》
CSCD
北大核心
2007年第6期75-80,F0003,共7页
Journal of Sediment Research
基金
国家自然科学基金创新群体基金资助项目(50221903)
