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Enhanced degradation of polycyclic aromatic hydrocarbons by indigenous microbes combined with chemical oxidation
Liao, Xiaoyong1; Wu, Zeying1; Li, You1; Luo, Junpeng1; Su, Chunming2
2018-12-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume213Pages:551-558
Corresponding AuthorLiao, Xiaoyong(liaoxy@igsnrr.ac.cn)
AbstractIn this study, the removal efficiency PAHs by chemical oxidation combined with microbe remediation was evaluated in two contaminated soils. The number of indigenous soil microbes decreased after the addition of chemical oxidants and then increased by nutrients addition. The total removal efficiencies of PAHs by chemical oxidation and nutrient addition followed the order: activated persulfate > potassium permanganate > modified Fenton reagent > Fenton reagent. There are 24.29-27.97%, 22.00-23.67%, 10.24-13.74% and 1.9-2.5% contributions separately due to nutrient treatment in Fenton, modified Fenton, activated persulfate and potassium permanganate treatment, which show significantly difference. The different chemical oxidants exhibited 78-90% removal efficiency for 5-6 rings PAHs, while 52-85% removal efficiency for 2-4 rings PAHs. With the addition of nutrients, the growth of indigenous microbes was enhanced significantly, and the contents of 2-4 rings PAHs in the soil were further decreased. Furthermore, the removal efficiencies of NAP and ANY were increased by more than 45%, while the removal efficiencies of ANE, FLE and PHE were about 30% at Fenton system. There was a complementary enhancing effect of microbial remediation for PAHs degradation after chemical oxidation. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordSoil Polycyclic aromatic hydrocarbons Microbe Chemical oxidation Combined strategies
DOI10.1016/j.chemosphere.2018.09.092
WOS KeywordCREOSOTE-CONTAMINATED SOIL ; PERMANGANATE OXIDATION ; FENTONS REAGENT ; CRUDE-OIL ; BIOREMEDIATION ; REMEDIATION ; PAHS ; BIODEGRADATION ; OPTIMIZATION ; IMPACT
Indexed BySCI
Language英语
Funding ProjectChinese Academy of Sciences[KFZDSW-303] ; Science and Technology Plan of Beijing[D16110900470000]
Funding OrganizationChinese Academy of Sciences ; Science and Technology Plan of Beijing
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000448493700059
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52605
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiao, Xiaoyong
Affiliation1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Beijing Key Lab Environm Damage Assessment & Reme, Inst Geog Sci & Nat Resources Res, 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. Enhanced degradation of polycyclic aromatic hydrocarbons by indigenous microbes combined with chemical oxidation[J]. CHEMOSPHERE,2018,213:551-558.
APA Liao, Xiaoyong,Wu, Zeying,Li, You,Luo, Junpeng,&Su, Chunming.(2018).Enhanced degradation of polycyclic aromatic hydrocarbons by indigenous microbes combined with chemical oxidation.CHEMOSPHERE,213,551-558.
MLA Liao, Xiaoyong,et al."Enhanced degradation of polycyclic aromatic hydrocarbons by indigenous microbes combined with chemical oxidation".CHEMOSPHERE 213(2018):551-558.
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