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Petroleum Geosciences: Indian ContextsPlant-Microbe Association-Assisted Removal of Heavy Metals and Degradation of Polycyclic Aromatic Hydrocarbons

Petroleum Geosciences: Indian Contexts: Plant-Microbe Association-Assisted Removal of Heavy... [Contamination by polycyclic aromatic hydrocarbons and heavy metals is a rather serious problem across the world and poses a major threat to living organisms. These are considered to be carcinogens and are constituents of oil sludge. The magnitude of PAHs released into the environment has increased drastically in recent times. This is mostly due to petroleum waste or seepage during transportation of crude oil. There have been several instances of oil spills on the coasts of India and elsewhere. In northeast India, PAHs pollution is evident at the sites of drilling and refinery sites. The boiling points of high molecular weight PAHs are very high and they are almost difficult to decompose. Their hydrophobicity causes these compounds to accumulate and sequester in soil organic matter; thus, their desorption from soil limits the efficiency of biodegradation in situ. This chapter will focus on the various case studies where plant-microbe association has been used to assist bioremediation process of PAHs and heavy metals in oil-contaminated soil. Topics to be covered include how plants and microbes together effect the remediation process, bioavailability of PAHs, facilitating the movement of essential nutrients, air and water and production of biosurfactants in faster acceleration of the removal process.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Petroleum Geosciences: Indian ContextsPlant-Microbe Association-Assisted Removal of Heavy Metals and Degradation of Polycyclic Aromatic Hydrocarbons

Part of the Springer Geology Book Series
Editors: Mukherjee, Soumyajit
Sarma, Hemen; Prasad, M. N. V.
Petroleum Geosciences: Indian Contexts — May 20, 2015
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18 pages

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Publisher
Springer International Publishing
Copyright
© Springer International Publishing Switzerland 2015
ISBN
978-3-319-03118-7
Pages
219 –236
DOI
10.1007/978-3-319-03119-4_10
Publisher site
See Chapter on Publisher Site

Abstract

[Contamination by polycyclic aromatic hydrocarbons and heavy metals is a rather serious problem across the world and poses a major threat to living organisms. These are considered to be carcinogens and are constituents of oil sludge. The magnitude of PAHs released into the environment has increased drastically in recent times. This is mostly due to petroleum waste or seepage during transportation of crude oil. There have been several instances of oil spills on the coasts of India and elsewhere. In northeast India, PAHs pollution is evident at the sites of drilling and refinery sites. The boiling points of high molecular weight PAHs are very high and they are almost difficult to decompose. Their hydrophobicity causes these compounds to accumulate and sequester in soil organic matter; thus, their desorption from soil limits the efficiency of biodegradation in situ. This chapter will focus on the various case studies where plant-microbe association has been used to assist bioremediation process of PAHs and heavy metals in oil-contaminated soil. Topics to be covered include how plants and microbes together effect the remediation process, bioavailability of PAHs, facilitating the movement of essential nutrients, air and water and production of biosurfactants in faster acceleration of the removal process.]

Published: May 20, 2015

Keywords: Bioaugmentation; Biotransformation; Emulsified vegetable oil; Microbial consortia; Microbial degradation; Oil spills; Sludge and drilling fluids; Total petroleum hydrocarbons

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