高级搜索

苯系物污染土壤气相抽提处理试验

downloadPDF

上一篇

下一篇

朱杰. 苯系物污染土壤气相抽提处理试验[J]. 环境化学, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
引用本文: 朱杰. 苯系物污染土壤气相抽提处理试验[J]. 环境化学, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
shu
ZHU Jie. Remediation of BTEX-contaminated soil using soil vapor extraction[J]. Environmental Chemistry, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
Citation: ZHU Jie. Remediation of BTEX-contaminated soil using soil vapor extraction[J]. Environmental Chemistry, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
shu

苯系物污染土壤气相抽提处理试验

  • 1.

    上海市环境科学研究院, 国家环境保护城市土壤污染控制与修复工程技术中心, 上海, 200233

  • 基金项目:

    环保部公益性项目(201109019)

    上海市环保局青年创新基金项目(2013-60)

    上海市环保局重点项目(2012-07)资助.

Remediation of BTEX-contaminated soil using soil vapor extraction

  • 1.

    Shanghai Academy of Environmental Sciences, Shanghai, 200233, China

  • Fund Project:

  • 摘要: 以苯系物污染土壤为研究对象,采用气相抽提技术,明确抽提速率在抽提过程中的关键作用;考察不同苯系物的物性对去除效果的影响;同时分析土壤中不同层次去除率的差异,初步探讨土壤中气体运动模式.结果显示,在3个抽提速率3、6、15 Lmin-1作用下,去除率在60%80%.分子量越大,沸点越高的污染物越不易被去除,各污染物去除率大小关系:苯甲苯氯苯乙苯间、对二甲苯邻二甲苯.实验通过分析处理不同土壤层次抽提前后的浓度变化,发现表层土壤和中心位置土壤的去除效果明显.这是由于在负压抽提过程中形成的优先流:气体从阀门内进入,大部分气体沿着壁面到达土壤的表层,进入中心位置,最后通过抽提管壁的孔隙进入抽提系统中.
    Abstract: In this contribution the remediation of BTEX-contaminated soil using soil vapor extraction was investigated. Essential processing elements such as extraction rates, physical properties of the contaminants and soil types were studied. Using three different extraction rates the results reveal that the removal rates for all BTEX contaminants were between 60%80%. More importantly, the most recalcitrant contaminant of the BTEX was the p-xylene, which contains the highest molecular weight. The concentrations for all contaminants in different soil types show soils that located around the subsurface or closer to the valves appeared to be well treated. This is mainly attributed to the priority gate: air coming from the valves got through the side, then reached to the soil subsurface, followed by the central position and finally to the extraction tube. The results in this contribution confirm that the BTEX\contaminated soil can be treated by using soil vapor extraction.
  • 加载中
  • [1] Nora B, Sutton J, Tim C. Efforts to improve coupled in situ chemical oxidation with bioremediation: A review of optimization strategies [J]. Journal of Soils and Sediments, DOL 10.1007/s11368-010-0272-9
    [2] [2] Chapelle F H. Behavior of a chlorinated ethane plume following source-area treatment with Fenton's reagent[J]. Ground Water Monitoring and Remediation, 2005, 25:131-141
    [3] [3] Kulik N, Goi A, Trapido M, et al. Degradation of polycyclic aromatic hydrocarbons by combined chemical pre-oxidation and bioremediation in creosote contaminated soil[J]. Journal of Environmental Management, 2006, 78:382-391
    [4] [4] Vinegar H J, Coles J M, Menotti J L. In Situ Thermal desorption of coal tar[C]. IGT/GRI International Symposium on Environmental Biotechnologies and Site Remediation Technologies, Orlando, Florida, December 7-9, 1998
    [5] [5] Heron G, Parker K, Galligan J, et al. Thermal treatment of eight CVOC source zones to near nondetect concentrations [J]. Ground Water Monitoring & Remediation. 2009, 29(3): 56-65
    [6] [6] Uzgiris E E, Edelstein W A, Philipp H R, et al. Complex thermal desorption of PCBs from soil [J]. Chemosphere, 1995, 30(2): 377-387
    [7] [7] Iben I E T, Edelstein W A, Sheldon R B. et al. Thermal blanket for in-situ remediation of surficial contamination: A pilot test [J]. Environmental Science & Technology, 1996, 30(11):3144-3154
    [8] [14] Fall E W, Pickens W E. In situ hydrocarbon extraction [J]. Environmental Consultants Environmental Science and Technology, 1988, 22(3):349-353
    [9] [15] Crow W L, Anderson E P, Minugh E M. Subsurface venting of vapors emanating from hydrocarbon product on groundwater [J]. Groundwater Monitoring Review, 1986, 7(1):51-56
    [10] [16] Soares A A, Albergaria J T, Domingues V F, et al. Remediation of soils combining soil vapor extraction and bioremediation:benzene[J]. Chemosphere, 2010, 80:823-828
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1537
  • HTML全文浏览数:  1505
  • PDF下载数:  705
  • 施引文献:  0
出版历程
  • 收稿日期:  2013-03-19
朱杰. 苯系物污染土壤气相抽提处理试验[J]. 环境化学, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
引用本文: 朱杰. 苯系物污染土壤气相抽提处理试验[J]. 环境化学, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
shu
ZHU Jie. Remediation of BTEX-contaminated soil using soil vapor extraction[J]. Environmental Chemistry, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
Citation: ZHU Jie. Remediation of BTEX-contaminated soil using soil vapor extraction[J]. Environmental Chemistry, 2013, 32(9): 1646-1652. doi: 10.7524/j.issn.0254-6108.2013.09.007
shu

苯系物污染土壤气相抽提处理试验

  • 1. 上海市环境科学研究院, 国家环境保护城市土壤污染控制与修复工程技术中心, 上海, 200233
  • 收稿日期:  2013-03-19
基金项目:

环保部公益性项目(201109019)

上海市环保局青年创新基金项目(2013-60)

上海市环保局重点项目(2012-07)资助.

摘要: 以苯系物污染土壤为研究对象,采用气相抽提技术,明确抽提速率在抽提过程中的关键作用;考察不同苯系物的物性对去除效果的影响;同时分析土壤中不同层次去除率的差异,初步探讨土壤中气体运动模式.结果显示,在3个抽提速率3、6、15 Lmin-1作用下,去除率在60%80%.分子量越大,沸点越高的污染物越不易被去除,各污染物去除率大小关系:苯甲苯氯苯乙苯间、对二甲苯邻二甲苯.实验通过分析处理不同土壤层次抽提前后的浓度变化,发现表层土壤和中心位置土壤的去除效果明显.这是由于在负压抽提过程中形成的优先流:气体从阀门内进入,大部分气体沿着壁面到达土壤的表层,进入中心位置,最后通过抽提管壁的孔隙进入抽提系统中.

English Abstract

    全文HTML

参考文献 (10)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心