Enhancing the intrinsic bioremediation of PAH-contaminated anoxic estuarine sediments with biostimulating agents SCIE SCOPUS KCI

DC Field Value Language
dc.contributor.author Bach, QD -
dc.contributor.author Kim, SJ -
dc.contributor.author Choi, SC -
dc.contributor.author Oh, YS -
dc.date.accessioned 2020-04-20T13:55:38Z -
dc.date.available 2020-04-20T13:55:38Z -
dc.date.created 2020-01-28 -
dc.date.issued 2005-08 -
dc.identifier.issn 1225-8873 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/5043 -
dc.description.abstract Estuarine sediments are frequently polluted with hydrocarbons from fuel spills and industrial wastes. Polycyclic aromatic hydrocarbons (PAHs) are components of these contaminants that tend to accumulate in the sediment due to their low aqueous solubility, low volatility, and high affinity for particulate matter. The toxic, recalcitrant, mutagenic, and carcinogenic nature of these compounds may require aggressive treatment to remediate polluted sites effectively. In petroleum-contaminated sediments near a petrochemical industry in Gwangyang Bay, Korea, in situ PAH concentrations ranged from 10 to 2,900 mu g/kg dry sediment. To enhance the biodegradation rate of PAHs under anaerobic conditions, sediment samples were amended with biostimulating agents alone or in combination: nitrogen and phosphorus in the form of slow-release fertilizer (SRF), lactate, yeast extract (YE), and Tween 80. When added to the sediment individually, all tested agents enhanced the degradation of PAHs, including naphthalene, acenaphthene, anthracene, fluorene, phenanthrene, fluoranthene, pyrene, chrysene, and benzo[a]pyrene. Moreover, the combination of SRF, Tween 80, and lactate increased the PAH degradation rate 1.2-8.2 times above that of untreated sediment (0.01-10 mu g PAH/ kg dry sediment/day). Our results indicated that in situ contaminant PAHs in anoxic sediment, including high molecular weight PAHs, were degraded biologically and that the addition of stimulators increased the biodegradation potential of the intrinsic microbial populations. Our results will contribute to the development of new strategies for in situ treatment of PAH-contaminated anoxic sediments. -
dc.description.uri 1 -
dc.language English -
dc.publisher MICROBIOLOGICAL SOCIETY KOREA -
dc.subject POLYCYCLIC AROMATIC-HYDROCARBONS -
dc.subject MARINE HARBOR SEDIMENTS -
dc.subject ANAEROBIC DEGRADATION -
dc.subject BIODEGRADATION -
dc.subject SOIL -
dc.subject SOLUBILIZATION -
dc.subject PHENANTHRENE -
dc.subject OXIDATION -
dc.subject WATER -
dc.subject BAY -
dc.title Enhancing the intrinsic bioremediation of PAH-contaminated anoxic estuarine sediments with biostimulating agents -
dc.type Article -
dc.citation.endPage 324 -
dc.citation.startPage 319 -
dc.citation.title JOURNAL OF MICROBIOLOGY -
dc.citation.volume 43 -
dc.citation.number 4 -
dc.contributor.alternativeName 김상진 -
dc.identifier.bibliographicCitation JOURNAL OF MICROBIOLOGY, v.43, no.4, pp.319 - 324 -
dc.identifier.scopusid 2-s2.0-24944467717 -
dc.identifier.wosid 000231609900001 -
dc.type.docType Article -
dc.identifier.kciid ART001099010 -
dc.description.journalClass 1 -
dc.subject.keywordPlus POLYCYCLIC AROMATIC-HYDROCARBONS -
dc.subject.keywordPlus MARINE HARBOR SEDIMENTS -
dc.subject.keywordPlus ANAEROBIC DEGRADATION -
dc.subject.keywordPlus BIODEGRADATION -
dc.subject.keywordPlus SOIL -
dc.subject.keywordPlus SOLUBILIZATION -
dc.subject.keywordPlus PHENANTHRENE -
dc.subject.keywordPlus OXIDATION -
dc.subject.keywordPlus WATER -
dc.subject.keywordPlus BAY -
dc.subject.keywordAuthor biodegradation -
dc.subject.keywordAuthor bioremediation -
dc.subject.keywordAuthor anoxic sediment -
dc.subject.keywordAuthor PAH -
dc.subject.keywordAuthor biostimulation -
dc.relation.journalWebOfScienceCategory Microbiology -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.description.journalRegisteredClass kci -
dc.relation.journalResearchArea Microbiology -
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