Benzene Biodegradation under Anaerobic Conditions Coupled with Metal Oxides Reduction

Anaerobic benzene biodegradation was performed in batch experiments using Rhine River sediment as inoculum and amorphous Mn(IV) or Fe(III) as independent final electron acceptors. Benzene (4.5 μmol) was degraded in 80 and 710 days in batch experiments under Mn(IV) and Fe(III) reducing conditions, re...

Full description

Saved in:

Bibliographic Details
Published in:	Water, air, and soil pollution Vol. 192; no. 1-4; pp. 165 - 172
Main Authors:	VILLATORO-MONZON, Wilverth R, MORALES-IBARRIA, Marcia G, VELAZQUEZ, Elia K, RAMIREZ-SAAD, Hugo, RAZO-FLORES, Elias
Format:	Journal Article
Language:	English
Published:	Dordrecht Dordrecht : Springer Netherlands 01-07-2008 Springer Netherlands Springer Springer Nature B.V
Subjects:	Anaerobic conditions Applied sciences Atmospheric Protection/Air Quality Control/Air Pollution Benzene Biodegradation bioreactors Carbon Carbon dioxide Climate Change/Climate Change Impacts Contamination Earth and Environmental Science Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environment Environmental monitoring Exact sciences and technology Experiments Fluvial sediments Global environmental pollution Hydrocarbons Hydrogeology Inoculum Iron iron oxides manganese oxides Metal oxides Metals Nitrates Pollution Pollution, environment geology reduction rivers sediment contamination Sediments Sensors Soil Science & Conservation Stoichiometry Studies Water Quality/Water Pollution Europe, Rhine R Reduction Sediment Aromatic compounds Column Iron(III) Benzene degradation Manganese(IV) Biodegradation Microbial activity Hydrocarbon Iron II Manganese II Persistent organic pollutant Carcinogen Pollution Decontamination Benzene Environment Poison Aromatic compound Bioremediation Electron acceptor Organic compounds
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Anaerobic benzene biodegradation was performed in batch experiments using Rhine River sediment as inoculum and amorphous Mn(IV) or Fe(III) as independent final electron acceptors. Benzene (4.5 μmol) was degraded in 80 and 710 days in batch experiments under Mn(IV) and Fe(III) reducing conditions, respectively. Highest benzene degradation rate, 0.07 μmol/day, was obtained under Mn (IV) reducing conditions, with soluble Mn(II) and CO₂ recoveries of 71.5% and 93% regarding to the stoichiometric values, respectively. Likewise, benzene biodegradation was performed in a continuous column coupled to the reduction of Mn(IV). Efficiency of benzene biodegradation was up to 97% under steady state operation in a sediment column operated continuously for more than 160 days. The carbon dioxide and Mn(II) recoveries were 88% and 77%, respectively, of the theoretical ratio according to the stoichiometry for benzene biodegradation.
Bibliography:	http://dx.doi.org/10.1007/s11270-008-9643-x ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0049-6979 1573-2932
DOI:	10.1007/s11270-008-9643-x