IGSNRR OpenIR
Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs
Liao, Xiaoyong1; Wu, Zeying1; Li, You1; Cao, Hongying1; Su, Chunming2
2019-07-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume226Pages:483-491
Corresponding AuthorLiao, Xiaoyong(Liaoxy@igsnrr.ac.cn)
AbstractChemical oxidation is a promising pretreatment step coupled with bioremediation for removal of polycyclic aromatic hydrocarbons (PAHs). The effectiveness of Fenton, modified Fenton, potassium permanganate and activated persulfate oxidation treatments on the real contaminated soils collected from a coal gas plant (263.6 +/- 73.3 mg kg(-1) of the Sigma 16 PAHs) and a coking plant (385.2 +/- 39.6 mg kg(-1) of the Sigma 16 PAHs) were evaluated. Microbial analyses showed only a slight impact on indigenous microbial diversity by Fenton treatment, but showed the inhibition of microbial diversity and delayed population recovery by potassium permanganate reagent. After potassium permanganate treatment, the microorganism mainly existed in the soil was Pseudomonas or Pseudomonadaceae. The results showed that total organic carbon (TOC) content in soil was significantly increased by adding modified Fenton reagent (1.4%-2.3%), while decreased by adding potassium permanganate (0.2%-1%), owing to the nonspecific and different oxidative properties of chemical oxidant. The results also demonstrated that the removal efficiency of total PAHs was ordered: permanganate (90.0%-92.4%)> activated persulfate (81.5%-86.54%)> modified Fenton (81.5%-85.4%)> Fenton (54.1%-60.0%). Furthermore, the PAHs removal efficiency was slightly increased on the 7th day after Fenton and modified Fenton treatments, about 14.6%, and 14.4% respectively, and the PAHs removal efficiency only enhanced 4.1% and 1.3% respectively from 1st to 15th day after potassium permanganate and activated persulfate treatments. The oxidants greatly affect the growth of soil indigenous microbes, which cause further influence for PAHs degradation by bioremediation. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordChemical oxidation Diversity Microorganism PAHs
DOI10.1016/j.chemosphere.2019.03.126
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; BACTERIAL-DEGRADATION ; BIOREMEDIATION ; PERSULFATE ; BIODEGRADATION ; BIOSTIMULATION ; REMOVAL ; IMPACT ; CARBON
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDA23010400] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-ZS-2016-5-5] ; Science and Technology Plan of Beijing[D16110900470000]
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Science and Technology Plan of Beijing
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000468709500053
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/59354
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiao, Xiaoyong
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing Key Lab Environm Damage Assessment & Reme, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.US EPA, Natl Risk Management Res Lab, Ground Water & Ecosyst Restorat Div, Ada, OK USA
Recommended Citation
GB/T 7714
Liao, Xiaoyong,Wu, Zeying,Li, You,et al. Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs[J]. CHEMOSPHERE,2019,226:483-491.
APA Liao, Xiaoyong,Wu, Zeying,Li, You,Cao, Hongying,&Su, Chunming.(2019).Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs.CHEMOSPHERE,226,483-491.
MLA Liao, Xiaoyong,et al."Effect of various chemical oxidation reagents on soil indigenous microbial diversity in remediation of soil contaminated by PAHs".CHEMOSPHERE 226(2019):483-491.
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