Joint remediation of petroleum contaminated soil by urea peroxide with microorganism

被引：0
作者：
Zheng J. [1 ,2 ]
Han R. [1 ,2 ,3 ]
Li D. [1 ,2 ]
Wang X. [1 ,2 ,4 ]
Gao C. [1 ,2 ]
Du X. [1 ,2 ]
Zhang X. [1 ,2 ]
Zou D. [3 ]
机构：
[1] State Key Lab of Petroleum Pollution Control, Beijing
[2] CNPC Research Institute of Safety & Environmental Technology, Beijing
[3] Beijing University of Chemical Technology, School of Chemical Engineering, Beijing
[4] China University of Petroleum-Beijing, College of Chemical Engineering and Environment, Beijing
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 09期
关键词：
activation; orthogonal experimental; petroleum contamination; soil remediation; urea peroxide;
D O I：
10.16085/j.issn.1000-6613.2021-2444
中图分类号：
学科分类号：
摘要：
In order to certificate the feasibility of joint remediation of chemical oxidation method with microorganism method for petroleum-contaminated soil. Using urea peroxide as the oxidant and Fe2+ as the activator, joint repair experiments and the orthogonal experiment design were used to investigate the conditions for urea peroxide (UHP) to remove petroleum pollutants in soil and the effect of UHP combined with microorganism on the remediation of petroleum contaminated soil. The optimal conditions for the chemical oxidation experiment were as followings: 4% mass fraction of UHP, UHP∶Fe2+ (molar ratio) = 30∶1 and water∶soil = 3∶2. Compared to the single microbial remediation method and single urea peroxide oxidation remediation method, the degradation rate of petroleum hydrocarbons with the urea peroxide combined with microbial methods for remediation of petroleum contaminated soils was increased by 35.45%—47.26% and 3.35%—15.16%, respectively. The sequence of urea peroxide and microorganism remediation was optimized. Compared to microbial remediation followed by urea peroxide remediation, the urea peroxide remediation followed by microbial remediation increased the degradation rate of petroleum hydrocarbons by 11.81% . This study shows that urea peroxide combined with microbial remediation is a good way to degrade petroleum in the soil. © 2022 Chemical Industry Press. All rights reserved.
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页码：5085 / 5093
页数：8
相关论文
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