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Bioremediation of diesel-contaminated soils by natural attenuation, biostimulation and bioaugmentation employing Rhodococcus sp. EH831

Title
Bioremediation of diesel-contaminated soils by natural attenuation, biostimulation and bioaugmentation employing Rhodococcus sp. EH831
Authors
Lee E.-H.Kang Y.-S.Cho K.-S.
Ewha Authors
조경숙이은희
SCOPUS Author ID
조경숙scopus; 이은희scopusscopus
Issue Date
2011
Journal Title
Korean Journal of Microbiology and Biotechnology
ISSN
1598-642XJCR Link
Citation
vol. 39, no. 1, pp. 86 - 92
Indexed
SCOPUS; KCI scopus
Abstract
Three bioremediation methods, natural attenuation (NA), biostimulation (BS) and bioaugmentation (BA) were applied to remediate diesel-contaminated soil, with their remediation efficiencies and soil microbial activities compared both with and without surfactant (Tween 80). BA treatment employing Rhodococcus sp. EH831 was the most effective for the remediation of diesel-contaminated soil at initial remediation stage. On the addition of surfactant, no significant effect on the remediation performance was observed. A negative correlation was found between the dehydrogenase activity (DHA) and residual concentration of total petroleum hydrocarbons (TPHs) at below 20,000 mg-TPHs·kg-dry soil -1, as follows: DHA μg-TPF(Triphenylformazan)·g-dry soil -1 d -1) = -0.02 x TPHs concentration (mg-TPHs·kg-dry soil -1)+ 425.76 (2500 ≤ TPHs concentration ≤ 20000, p < 0.01).
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엘텍공과대학 > 환경공학전공 > Journal papers
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