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Biodegradation of Polycyclic Aromatic Hydrocarbons (PAHs) by Trichoderma reesei FS10-C and Effect of Bioaugmentation on an Aged PAH-Contaminated Soil.
- Source :
-
Bioremediation Journal . 2015, Vol. 19 Issue 1, p9-17. 9p. - Publication Year :
- 2015
-
Abstract
- ABSTRACT The co-metabolism of benzo[a]pyrene (B[a]P) and the capacity of the fungusTrichoderma reeseiFS10-C to bioremediate an aged polycyclic aromatic hydrocarbon (PAH)-contaminated soil were investigated. The fungal isolate removed about 54% of B[a]P (20 mg L−1) after 12 days of incubation with glucose (10 g L−1) supplementation as a co-metabolic substrate. Bioaugmented microcosms showed a 25% decrease in total PAH concentrations in soil after 28 days, and the degradation percentages of 3-, 4-, and 5(+6)-ring PAHs were 36%, 35%, and 25%, respectively. In addition, bioaugmented microcosms exhibited higher dehydrogenase (DHA) and fluorescein diacetate hydrolysis (FDAH) activities and increased average well-color development (AWCD), Shannon-Weaver index (H), and Simpson index (D) significantly. Principal component analysis (PCA) also distinguished clear differentiation between treatments, indicating that bioaugmentation restored the microbiological function of the PAH-contaminated soil. The results suggest that bioaugmentation byT. reeseiFS10-C might be a promising bioremediation strategy for aged PAH-contaminated soils. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 10889868
- Volume :
- 19
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Bioremediation Journal
- Publication Type :
- Academic Journal
- Accession number :
- 101141397
- Full Text :
- https://doi.org/10.1080/10889868.2014.939137