• 关键词：重金属释放  动力学  水体沉积物

• 基金项目：陕西省自然科学基金;西安建筑科技大学博士专项基金

• 黄廷林
• 西安建筑科技大学环境工程系,西安 710055

• 摘要：分析了水体沉积物中重金属释放的特点,在此基础上,建立并求解了固、液两相中重金属释放过程的动力学模型,对渭河沉积物中重金属Cu、Zn、Pb、Cd进行了释放试验研究,结果表明,所建立的动力学模型能够较为满意地描述沉积物中重金属释放的动力学过程。

• Abstract：According to the characteristics of heavy metal release from river sediments, a new ki-netic model of heavy metal release has been developed.The experimental studies on releaseof Cu, Zn, Pb and Cd from sediment of Wei River were carried out.The results showedthat the kinetic model can satisfactorily describe the kinetic process of heavy metal releasefrom river sediments.

• Key words：heavy metal,release  kinetics,sediments

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