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Type: Artigo de periódico
Title: Biodegradation of aromatic hydrocarbons by Haloarchaea and their use for the reduction of the chemical oxygen demand of hypersaline petroleum produced water
Author: Bonfa, MRL
Grossman, MJ
Mellado, E
Durrant, LR
Abstract: Ten halophilic Archaea (Haloarchaea) strains able to degrade aromatic compounds were isolated from five hypersaline locations; salt marshes in the Uyuni salt flats in Bolivia, crystallizer ponds in Chile and Cabo Rojo (Puerto Rico), and sabkhas (salt flats) in the Persian Gulf (Saudi Arabia) and the Dead Sea (Israel and Jordan). Phylogenetic identification of the isolates was determined by 16S rRNA gene sequence analysis. The isolated Haloarchaea strains were able to grow on a mixture of benzoic acid, p-hydroxybenzoic acid, and salicylic acid (1.5 mM each) and a mixture of the polycyclic aromatic hydrocarbons, naphthalene, anthracene, phenanthrene, pyrene and benzo[a]anthracene (0.3 mM each). Evaluation of the extent of degradation of the mixed aromatic hydrocarbons demonstrated that the isolates could degrade these compounds in hypersaline media containing 20% NaCl. The strains were shown to reduce the COD of hypersaline crude oil reservoir produced waters significantly beyond that achieved using standard hydrogen peroxide treatment alone. (C) 2011 Elsevier Ltd. All rights reserved.
Subject: Haloarchaea
Polyaromatic hydrocarbon
COD produced water
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Chemosphere. Pergamon-elsevier Science Ltd, v. 84, n. 11, n. 1671, n. 1676, 2011.
Rights: fechado
Identifier DOI: 10.1016/j.chemosphere.2011.05.005
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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