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摘要
详细介绍了原位热脱附技术（ISTD）的原理、特点以及技术分类，并对其进行评价和总结；分析了热脱附温度、停留时间等因素对热脱附脱除效率的影响；讨论了回收型和破坏型2种类型的热脱附尾气处理技术。原位热脱附技术由于修复周期短、效率高等优点被广泛使用，未来或可向多种修复技术联合修复的方向发展。
Abstract
The principle,characteristics and technical classification of in-situ thermal desorption (ISTD) technology are introduced,evaluated and summarized.Influences of thermal desorption temperature and residence time on thermal desorption efficiency are analyzed.In addition,the recycling type and destructive type of treatment technologies for thermal desorption off-gas are discussed in detail.Due to the short remediation period,high efficiency and low cost characteristics,ISTD is widely used in remediation of organic compounds contaminated soil.Furthermore,ISTD can be combined with other remediation technologies in the joint remediation of organic compounds contaminated soil.
关键词
有机物
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原位热修复
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热脱附技术
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污染土壤
Key words
organic compounds
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in situ thermal remediation
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thermal desorption technology
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contaminated soils
Author summay
王殿二(1977-),男,大专,工程师,研究方向为土壤场地修复,wangde@ebchinaintl.com.cn
有机污染土壤原位热脱附及尾气处理研究进展[J].
, 2020, 40(10): 55-59,65 DOI:10.16606/j.cnki.issn0253-4320.2020.10.012
