热解吸在有机污染物土壤治理中的应用研究进展

Research Progress on Application of Thermal Desorption in Treatment of Organic Pollutants in Soil

对国内外热解吸技术的研究做出了总结分析,对热解吸技术的机理、技术重点、分类做出了描述。重点介绍了我国受污染土壤类型情况,土壤污染治理技术发展情况以及在热解吸治理污染土壤过程中相关催化剂(零价铁、碱金属等)的选择、尾气处理过程中不同催化技术(光催化、负载型贵金属催化剂)的应用。针对现有热解吸技术在治理有机污染土壤中存在的优势和弊端,提出了该方法在我国土壤污染治理中的重点发展方向。

The research on thermal desorbing technology at home and abroad was summarized and analysed,and the mechanism,technical focus and classification of thermal desorbing technology were described.The types of contaminated soil in China,the development of soil pollution control technology,the selection of relevant catalyst(zero valent iron,alkali metal,etc)in the process of thermal absorption and treatment of contaminated soil,and the application of different catalytic technologies(photo catalytic and supported noble metal catalyst)in the process of tail gas treatment were mainly introduced.In view of the advantages and disadvantages of the existing thermal desorbing technology in the treatment of organic contaminated soil,the key development direction of the method in the treatment of soil pollution in China was proposed.