摘要
土壤气相抽提技术(SVE)已广泛应用到有机污染场地中。主要通过真空技术,驱使土壤气定向抽提井流动,将土壤中的各相污染物转化为气态抽出。气相抽提技术可有效去除污染土壤中的挥发性和某些半挥发性污染物,从而降低污染物从土壤迁移到地下水的潜在风险。本文对气相抽提的原理进行概述,并分析总结了其影响因素,最后介绍了该技术的应用实例,旨在为气相抽提技术在有机污染场地的修复应用提供参考。
Soil vapor extraction(SVE) has been widely used in organic contaminated sites. Through the vacuum technology, the soil gas is driven to flow in the directional extraction well, and the pollutants in each phase of the soil are converted into gaseous state and pumped out. Gas phase extraction technology can effectively remove volatile and some semi volatile pollutants from contaminated soil, thus reducing the potential risk of pollutant migration from soil to groundwater. In this paper, the principle of gas phase extraction is summarized, and its influencing factors are analyzed and summarized. Finally, an application example of the technology is introduced, aiming to provide a reference for the application of gas phase extraction technology in the remediation of organic contaminated sites.
作者
姚佳斌
张语情
蒋尚
刘勇
YAO Jia-bin;ZHANG Yu-qing;JIANG Shang;LIU Yong(不详)
关键词
气相抽提
土壤
有机污染
影响因素
gas phase extraction
soil
organic pollution
influencing factors
