Journal
BIORESOURCE TECHNOLOGY
Volume 105, Issue -, Pages 31-39Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.11.096
Keywords
Biosorption; BTEX; Peat; Angico sawdust; Petroleum industry wastewater
Funding
- CNPq [556665/2009-0]
- PRH ANP [45]
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This work investigates the potentials of peat and angico hardwood sawdust to remove BTEX (benzene, toluene, ethylbenzene, and isomers of xylene) from the produced water discharged into aquatic systems during petroleum extraction. Peat and angico sawdust samples were pyrolyzed at 500 degrees C, and found to contain n-alkenes, n-alkanes and pentacyclic triterpenes (peat), and 4-methoxyphenol, 1,4-dimethoxyphenol and 1,3,4-trimethoxyphenol (angico sawdust). In batch experiments, the removal capacities using peat were 32.4%, 50.0%, 63.0%, 67.8%, and 61.8% for benzene, toluene, ethylbenzene, m,p-xylenes and o-xylene, respectively. This compared with removal capacities using angico sawdust of 20.2%, 36.4%, 52.8%, 57.8%, and 53.7% for these compounds respectively, demonstrating the superior performance of the peat. (C) 2011 Elsevier Ltd. All rights reserved.
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