Effects of soil texture and water content on remediation of SVE on soils contaminated by benzene

Shao Qing Liu, Lin Jiang, Yu Jun Yao, Yan Xia Li, Xi Tao Liu, Chun Ye Lin

Research output: Contribution to journalArticlepeer-review

Abstract

Soil vapor extraction (SVE) has been widely used for removal of volatile organic compounds (VOCs) from vadose zone as a safe, economical and efficient technology. Column-venting experiment was used to investigate removal of benzene in the soil by the SVE process. The effects of the soil texture (loamy sand, silt loam and clay) and water content on remediation efficiency were studied. The results showed that the removal efficiency of benzene from the loamy sand soil (98.5%) was higher than that for the silt loan and clay soils (68.3% and 43.4%). In addition, the tail effects were observed in the loamy sand with 20% and 10% water content and the remediation efficiency was lower at higher water content.

Original languageEnglish (US)
Pages (from-to)1731-1735
Number of pages5
JournalHuanjing Kexue/Environmental Science
Volume33
Issue number5
StatePublished - May 1 2012

Keywords

  • Benzene
  • Column-venting simulation
  • Soil texture
  • Soil vapor extraction (SVE)
  • Water content

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