燃气热脱附技术修复有机污染场地研究与应用进展

Research and application progress of gas thermal desorption technology for the remediation of organic contaminated sites

原位燃气热脱附是目前修复有机污染土壤最具潜力的技术之一。在查阅文献的基础上,结合国内外实际案例,系统梳理了有机污染土壤原位燃气热脱附修复技术的原理、适用范围、优缺点以及工艺施工流程,对国内外燃气热脱附技术的研究现状和工程应用情况进行了对比分析,并对该技术的发展趋势和应用前景进行了展望,以期为我国有机污染土壤原位热修复技术的推广和应用提供参考。

In situ gas thermal desorption(GTD)is one of the most promising technologies for the remediation of organic contaminated soil.Based on extensive literature review and worldwide practical cases analysis,this paper systematically reviewed the fundamental principle,application scope,advantages and disadvantages,and construction procedures of the GTD technology,and systematically compared and analyzed the current status of research and engineering application cases of GTD technology at home and abroad.Then the development trend and application prospect of this technology in China were also proposed.It is expected to provide beneficial information for in situ thermal treatment of organic contaminated soil in China.