Fenton Pre-Oxidation Followed by Microbial Degradation for Removing Crude Oil from Contaminated Soil

查看全文 作　　者：Gao [1,2,3,4]Chunyang;Zhang [2,3,4]Yu;Han [1]Zhantao;Song [3,4]Quanwei;Chen [2,3,4]Changzhao;Chen [3,4]Hongkun;Zheng [3,4]Jin

机构地区：[1]Hebei and China Geological Survey Key Laboratory of Groundwater Remediation,Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061;[2]China University of Geosciences,Beijing 100083;[3]State Key Laboratory of Petroleum Pollution Control,Beijing 102206;[4]CNPC Research Institute of Safety and Environmental Technology,Beijing 102206

出　　处：《China Petroleum Processing & Petrochemical Technology》索引2019年第21卷第3期,共9页

基　　金：supported by the Basic Research Project of the Institute of Hydrogeology and Environmental Geology of the Chinese Academy of Geological Sciences (SK201502) 摘　　要：Through the Fenton pre-oxidation followed by microbial degradation,this study gave full play to its advantages while avoiding its shortcomings for the remediation of crude oil contaminated soil.The Fenton reagent coupled with different volumes of H2O2 was applied to the oil contaminated soil and then the microbial agents were introduced to biodegrade the residual oil for 15 days.The correlation between the characteristics of residual oil in soil,the changes in soil physical-chemical property after the Fenton pre-oxidation,and the biodegradation were analyzed in this paper.The results show that the above factors are strongly correlated with the subsequent biodegradation rate,and the order of correlation is as follows:the ratio of TOC to NH4+-N(R^2=0.9513)>the ratio of light oil components to the heavy oil components(R^2=0.9095)>the proportion of hydrocarbons with carbon chain number of less than C23(R^2=0.8259)>the crude oil content(R^2=0.7603)>the soil pH(R^2=0.7492)>the number of microorganisms(R^2=0.6506).During the biodegradation and pre-oxidation reactions of heavy oil components,an appropriate C:N ratio turns out to be the most critical factor in this study. 关键词：CRUDE oil FENTON MICROBIAL degradation soil correlation analysis

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Fenton Pre-Oxidation Followed by Microbial Degradation for Removing Crude Oil from Contaminated Soil

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