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Indexed by:期刊论文

Date of Publication:2010-07-15

Journal:JOURNAL OF HAZARDOUS MATERIALS

Included Journals:SCIE、EI

Volume:179

Issue:1-3

Page Number:729-734

ISSN No.:0304-3894

Key Words:Bioaugmentation; Dyella ginsengisoli LA-4; Biphenyl; Denaturing gradient gel electrophoresis (DGGE)

Abstract:One high efficient biphenyl-degrading strain Dyella ginsengisoli LA-4 was inoculated into biphenyl-contaminated soil for bioaugmentation in this study. The results showed that bioaugmentation could accelerate the startup period of the biphenyl bioremediation process compared with the non-augmented one. PCR-DGGE fingerprints demonstrated that both of the diversity and pattern of microbial community were affected by the addition of strain LA-4 and biphenyl. Biphenyl-utilizing populations gradually increased and become the dominant species. The introduced strain LA-4 could be persistent and co-exist well with the indigenous populations. However, both of the strain LA-4 and indigenous microorganisms in the bioaugmented system would be partially inhibited by Zn(2+) and Ni(2+). This study suggests that it is feasible and potentially useful to remediate biphenyl-contaminated soil using bioaugmentation with D. ginsengisoli LA-4. (C) 2010 Elsevier B.V. All rights reserved.