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- Title
Electrokinetic remediation and microbial community shift of β-cyclodextrin-dissolved petroleum hydrocarbon-contaminated soil.
- Authors
Chunli Wan; Maoan Du; Duu-Jong Lee; Xue Yang; Wencheng Ma; Lina Zheng
- Abstract
Electrokinetic (EK) migration of β-cyclodextrin (β-CD), which is inclusive of total petroleum hydrocarbon (TPH), is an economically beneficial and environmentally friendly remediation process for oil-contaminated soils. Remediation studies of oil-contaminated soils generally prepared samples using particular TPHs. This study investigates the removal of TPHs from, and electromigration of microbial cells in field samples via EK remediation. Both TPH content and soil respiration declined after the EK remediation process. The strains in the original soil sample included Bacillus sp. , Sporosarcina sp. , Beta proteobacterium, Streptomyces sp., Pontibacter sp. , Azorhizobium sp., Taxeobacter sp., and Williamsia sp. Electromigration of microbial cells reduced the biodiversity of the microbial community in soil following EK remediation. At 200 V m for 10 days, 36% TPH was removed, with a small population of microbial cells flushed out, demonstrating that EK remediation is effective for the present oil-contaminated soils collected in field.
- Subjects
ELECTROKINETICS; ENVIRONMENTAL remediation; CYCLODEXTRINS; PETROLEUM; HYDROCARBONS
- Publication
Applied Microbiology & Biotechnology, 2011, Vol 89, Issue 6, p2019
- ISSN
0175-7598
- Publication type
Article
- DOI
10.1007/s00253-010-2952-1