地下水的有机污染问题及其吸附作用评价

文章认为有机污染质已对地下水污染构成威胁,研究有机污染质在地下水系统中的迁移转化机制,建立有效的预测模型,具有十分重要的意义。有机污染质与地下水形成不溶混流体,对其运移进行评价的理论、方法及测试技术都不同于通常对易溶混污染质的评价。这项工作在我国刚刚起步,研究程度较低。文章讨论了有机污染质—地下水体系的一般物理、化学特征和运移控制方程,指出吸附作用是使有机污染质运移滞缓的重要原因,介绍了目前国外研究有机污染质吸附作用的几种试验及结果。

ON THE ORGANIC CONTAMINATION OF GROUNDWATER AND THE EVALUATION OF THE SORPTION PROCESS IN THE ORGANIC SOLUTE

Ground water has been affected seriously by the contamination of the organic pollutants. Studying the transport and transformation processes of the organic contaminants in ground water and building the predicting model are of important significance. The organic pollutants and the groundwater are mixed to form an immiscible fluid.The theory and the method assessing the transport of organic contaminants and the measurement technique are different from those of the miscible pollutants. This kind of work is at the beginning in China and the studying level is relative low.The general physical and chemical characteristics of the organic contaminants-groundwater system and the transport equations are discussed in this paper.The sorption is an important process for retarding the movement of the organic contaminants in aquifers. Several experiments and results of the organic contaminant sorption on soils or aquifers in some foreign countries are introduced into China.