环境工程学报2009，Vol.3Issue(8)：1488-1492,5.
强化生物通风修复过程中柴油衰减规律及其影响因素研究
Study on attenuation of diesel oil and influencing factors during remediation of contaminated soil by enhancing bioventing
摘要
Abstract
Enhancing bioventing technology has great application prospects for remediating soil contamination caused by leaking underground storage tanks.In this study indoor soil column experiment was conducted.Natural attenuation of diesel oil in leaking contamination soil and the course of enhancing bioventing were analyzed from the viewpoint of the changes of total petroleum hydrocarbon(TPH)in soil column profile with sampiing time and degradation pattern.The results showed that the shape of residual TPH distribution curves and the location of the peak concentration were directly affected by initial diesel concentration in each column during natural attenuation and enhancing bioventing.Early in the process of natural attenuation(about 1 month),when diesel concentration in soil was 5000～40000 mg oil/kg soil,the changes of TPH in the whole column were mainly influenced by gravity migration.When diesel concentration in soil was less than or equal to 5 000 mg oil/kg soil,the changes of TPH were not only influenced by gravity migration,but also biodegradation.Approximately 2 months'venting later,extraction was prominent to maintain stable changes of the diesel concentration on the top of soil column.关键词
地下储油罐/柴油污染/强化生物通风/衰减/影响因素Key words
underground storage tank/diesel contamination/enhancing bioventing/attenuation/influencing factors分类
资源环境引用本文复制引用
杨金凤,陈鸿汉,王春艳,刘菲..强化生物通风修复过程中柴油衰减规律及其影响因素研究[J].环境工程学报,2009,3(8):1488-1492,5.基金项目
科技部国际科技合作项目(2006DFA21180) （2006DFA21180）
