环境工程学报2012，Vol.6Issue(7)：2406-2410,5.
柴油污染包气带的气相抽提影响因素
Influencing factors of soil vapor extraction for removal of diesel fuel from vadose zone
摘要
Abstract
The soil vapor extraction （SVE） is an economical and efficient in situ remediation technology of soil. A series of one-dimensional column experiments were conducted to study the influencing factors for SVE technique, the factors included sand grain size, sand water content and extraction mode, while the changes of concentrations of total petroleum hydrocarbons （TPH） along the depth in vadose zone were analyzed in the opera-tion process. The results indicated that sand grain sizes had a great impact on diesel fuel removal efficiency, the removal in coarse sand was higher than that in medium sand. Water content in the sand had negative impact on the diesel fuel removal efficiency, the removal in coarse sand with water content of 1% was higher than that in coarse sand with 12% water content. Continuous vapor extraction was more efficient than pulsed vapor extrac- tion. Furthermore, concentrations of diesel fuel in different depth of mediums had a tendency to first increase and then decrease.关键词
柴油/包气带/土壤气相抽提Key words
diesel oil/vadose zone/soil vapor extraction分类
资源环境引用本文复制引用
焦立娜,赵勇胜,屈智慧,王冰,李博,孙超,穆丹丹,丛馥涵,孙家强..柴油污染包气带的气相抽提影响因素[J].环境工程学报,2012,6(7):2406-2410,5.基金项目
国家“863”高技术研究发展计划项目（2007AA0632343 （）
2008AA06A410） （）
环保公益性行业科研专项经费资助项目 （）
