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Biodegradation of dibenzothiophene, fluoranthene, pyrene and chrysene in a soil slurry reactor by the white-rot fungus Bjerkandera sp. BOS55

Paper ID Volume ID Publish Year Pages File Format Full-Text
36020 45118 2007 8 PDF Available
Title
Biodegradation of dibenzothiophene, fluoranthene, pyrene and chrysene in a soil slurry reactor by the white-rot fungus Bjerkandera sp. BOS55
Abstract

Mass transfer phenomena can be an important constraint of the soil remediation process. With the goal of minimizing the mass transfer limitation, the degradation of four different PAHs by the white-rot fungus Bjerkandera adusta in a spiked marsh soil was evaluated in a slurry system. Key factors affecting the oxidation of PAHs with different chemical structure (two, three and four aromatic rings) were investigated. These included inoculum preparation, glucose concentration and synergic or antagonic actions between endogenous microflora and fungal culture. It was demonstrated that the fungus was able to grow and degrade the pollutants in a slurry phase stirred tank reactor. There was no significant improved effect on the degradation when the treatment was performed in presence of soil microflora. The system attained high PAH degradations, around 30 mg PAH/kg soil, after 30 days of operation under optimal conditions.

Keywords
Biodegradation; Bioremediation polycyclic aromatic hydrocarbons (PAH); White-rot fungus; Marsh soil; Bjerkandera sp.; Soil slurry reactor
First Page Preview
Biodegradation of dibenzothiophene, fluoranthene, pyrene and chrysene in a soil slurry reactor by the white-rot fungus Bjerkandera sp. BOS55
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 42, Issue 4, April 2007, Pages 641–648
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering