汞污染土壤修复技术的发展现状与筛选流程研究

近年来汞污染土壤情况日益严峻,因此选择合适的方法对汞污染土壤进行修复显得尤为重要.本文介绍了中国汞污染土壤现状和汞对人体的危害.在此基础上对国内外汞污染土壤修复技术,如热处理法、淋洗法、固化/稳定化、生物修复等技术进行了综述,总结得出各类修复技术的优缺点、技术关键点等,并给出了汞污染土壤修复技术筛选流程.指出了中国当前在汞污染土壤治理方面存在的问题,并提出了相关建议,为中国日后汞污染土壤修复技术的研究和工程实践提供参考.

Present Situation and Screening Strategies of Remediation Technology for Mercury-contaminated Soil

In recent years, soil contamination by mercury is becoming increasingly serious, so it is very important to choose the appropriate method for the remediation of mercury contaminated soil.This paper introduces the present status of mercury con-taminated soil in China and the damage of health.The domestic and international remediation technology for mercury-contamina-ted soil are reviewed, such as thermal desorption, leaching method, stabilization/solidification, bioremediation technology, the advantages and disadvantages, and the technical key points of remediation technology are summarized, and gives the screening strategies of remediation technology for mercury-contaminated soil.The existing problems in the treatment of mercury contamina-ted soil in China are pointed out and some suggestions are put forward in the hope of providing a good reference for the research and engineering practice of remediation of mercury contaminated soil in China.