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Ultrasonically enhanced delivery and degradation of PAHs in a polymer–liquid partitioning system by a microbial consortium by Pedro A. Isaza; Andrew J. Daugulis is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract The current study examined the effects of ultrasonic irradiation on mass transfer and degradation of PAHs, by an enriched consortium, when delivered from polymeric matrices. Rates of release into methanol under sonicated conditions, relative to unmixed cases, for phenanthrene, fluoranthene, pyrene, and benzo[a]pyrene were increased approximately fivefold, when delivered from Desmopan 9370 A (polyurethane). Similar effects were observed in Hytrel and Kraton® D4150 K polymers as well as recycled Bridgestone tires. Enhancements were also displayed as shifts to higher release equilibria under sonicated conditions, relative to non‐sonicated cases, agreeing with current knowledge in sonochemistry and attributed to cavitation. Ultrasonic effects on microbial activity were also investigated and cell damage was found to be non‐ permanent with consortium re‐growth being observed after sonic deactivation. Finally, the lumped effect of sonication on degradation of phenanthrene delivered from Desmopan was examined under the absence and presence of sonication. Rates of degradation were found to be increased by a factor of four demonstrating the possibility of using ultrasonic irradia

Who reads Ultrasonically enhanced delivery and degradation of PAHs in a polymer–liquid partitioning system by a microbial consortium?

Author

Pedro A. Isaza; Andrew J. Daugulis

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley - V C H Verlag GmbbH & Co.; Wiley (ISSN 0006-3592)

Published

2009

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)