Remediation of hydrocarbon-heavy metal co-contaminated soil by electrokinetics combined with biostimulation

doi:10.1016/j.cej.2018.07.131

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 应用与环境微生物研究

	Remediation of hydrocarbon-heavy metal co-contaminated soil by electrokinetics combined with biostimulation
	Ma, Yongsong 1; Li, Xi 1,2; Mao, Hongmin 1; Wang, Bing 1; Wang, Peijie 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2019-12-01
卷号	353 期号:2018 页码:410-418
关键词	Bioeletrokinetic Soil Hydrocarbon Nickel Ecotoxicity
ISSN号	1385-8947
DOI	10.1016/j.cej.2018.07.131
产权排序	2
文献子类	Article
英文摘要	Successful remediation of organics and heavy metals compound pollution is challenging, and their removal using conventional techniques is often difficult. This study developed an enhanced electrokinetics technology to decontaminate a hydrocarbon-heavy metal co-contaminated soil by applying biostimulation and selective membranes (cationic and anionic). A 30-day experiment was conducted in the laboratory to remediate the soil co-contaminated with total petroleum hydrocarbon (TPH) (9075 mg/kg) and Ni (446.6 mg/kg). The results demonstrated that the addition of anion-and cation-exchange membranes maintained soil pH stability. BioEK remediation under pH control improved microbial growth, microbial degradation of petroleum and reduced biological toxicity. Microbial action immobilized metals (e.g., reduction in exchangeable Ni and the increase in residual Ni). The degradation rate of TPH in contaminated soil was linearly correlated with the increase in TPH degradation population (P < 0.05). Under the optimum operating conditions, electro-bioremediation achieved 77.4% TPH degradation and 58.5% Ni removal after 30 days. Thus, the application of EK with the use of anion-and cation-exchange membranes improved microbial growth and biodegradation, and indigenous bacteria could effectively reduce metal toxicity. The proposed technique can effectively remediate the soil contaminated by heavy metal and organic pollutants.
学科主题	Chemical Engineering
URL标识	查看原文
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; SEQUENTIAL EXTRACTION ; ORGANIC POLLUTANTS ; AGRICULTURAL SOIL ; MARINE-SEDIMENTS ; CLAY SOIL ; BIOREMEDIATION ; PETROLEUM ; REMOVAL ; BIODEGRADATION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000441527900040
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30090]
专题	环境治理与食品安全领域_应用与环境微生物研究
作者单位	1.Southwest Petr Univ, Dept Chem & Chem Engn, Chengdu 610500, Sichuan, Peoples R China; 2.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yongsong,Li, Xi,Mao, Hongmin,et al. Remediation of hydrocarbon-heavy metal co-contaminated soil by electrokinetics combined with biostimulation[J]. CHEMICAL ENGINEERING JOURNAL,2019,353(2018):410-418.
APA	Ma, Yongsong,Li, Xi,Mao, Hongmin,Wang, Bing,&Wang, Peijie.(2019).Remediation of hydrocarbon-heavy metal co-contaminated soil by electrokinetics combined with biostimulation.CHEMICAL ENGINEERING JOURNAL,353(2018),410-418.
MLA	Ma, Yongsong,et al."Remediation of hydrocarbon-heavy metal co-contaminated soil by electrokinetics combined with biostimulation".CHEMICAL ENGINEERING JOURNAL 353.2018(2019):410-418.