Study of simulation on attenuation of diesel oil during remediation of contaminated soil by enhancing bioventing
文献类型： 会议论文
第一作者： Yang Jin-Feng
作者： Yang Jin-Feng 1 ; Zhao Tong-Ke 1 ; Zhang Cheng-Jun 1 ; Chen Hong-Han 2 ;
作者机构： 1.Institute of Plant Nutrition and Resources BAAFS Beijing, China
2.Beijing Key Laboratory of Water Resources & Environmental Engineering CUGB Beijing, China
关键词： underground storage tank;diesel contamination;enhancing bioventing;residual TPH;attenuation
会议名称： International Conference on Biomedical Engineering and Biotechnology (iCBEB 2012)
主办单位：
页码： 1718-1721
摘要： Bioventing is an in situ forced oxidative soil remediation technology which combined soil vapor extraction with biodegradation. It has broad application prospects of soil contamination caused by underground storage tank leakage. In this paper, soil column experiment which was used to simulate diesel contamination was conducted. The law of balance distribution of residual TPH (Total Petroleum Hydrocarbon) concentration at different time and the changes of diesel amount in soil at different depths, together with total diesel amount of the entire column were analyzed. The results showed that: (1) The initial soil moisture content affects the distribution and changes of TPH content during the natural attenuation and enhancing bioventing. (2) Gravity diffusion and migration was the main causes for the changes of TPH content of entire column in the early days of natural attenuation, within one month. Approximately 2 months’ venting later, extraction was prominent to maintain stable changes of the diesel concentration in the upper of soil column.
分类号： R318-53
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