Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 339, Issue -, Pages 427-449Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2017.06.013
Keywords
Slurry bioreactor; Biological treatment; Contaminated soil treatment; Aerobic process; HOC removal
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Funding
- Education, Audio-visual and Culture Executive Agency of the European Commission [2010-0009]
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Hydrophobic organic compound (HOC)-contaminated soils are a great environmental and public health concern nowadays. Further research is necessary to develop environmental friendly biotechnologies that allows public and private sectors to implement efficient and adaptable treatment approaches. Aerobic soil-slurry bioreactor technology has emerged as an effective and feasible technique with a high remediation potential, especially for silt and clay soil fractions, which often contain the highest pollutant concentration levels and are usually difficult to remove by implementing conventional methods. However, the mechanisms involved in the HOC removal in bioslurry reactor are still not completely understood. Gas-liquid and solid-liquid mass transfer, mass transport and biodegradation phenomena are the main known processes taking place in slurry bioreactors. This review compiles the most up-to-date information available about these phenomena and tries to link them, enlightening the possible interactions between parameters. It gathers the basic information needed to understand the complex bioremediation technology and raises awareness of some considerations that should be made. (C) 2017 Published by Elsevier B.V.
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