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Title: Inhibition of bacterially promoted uranium reduction: Ferric (hydr)oxides as competitive electron acceptors.

Abstract

Reduction of hexavalent to tetravalent uranium results in a marked decrease in the mobility of this hazardous element. Microbial reduction is the most kinetic viable mechanism for such a reaction. Unfortunately, alternate terminal electron acceptors may thus compete with uranyl. We examine the role of common iron oxides on uranyl reduction. Only poorly ordered iron oxides altered the degree and rate of hexavalent uranium reduction and the effect was transitory.

Authors:
; ; ;
Publication Date:
Research Org.:
Scott Fendorf / Stanford University (US)
Sponsoring Org.:
(US)
OSTI Identifier:
790243
Report Number(s):
4
TRN: US200306%%311
DOE Contract Number:  
FG03-99ER62885
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 34; Journal Issue: 11; Other Information: Journal item published in Environmental Science and Technology, Volume 34, No. 11 (15 May 2000); PBD: 15 May 2000
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BINDING ENERGY; ELECTRONS; IRON OXIDES; KINETICS; URANIUM; VALENCE; INHIBITION; URANYL REDUCTION; URANIUM REDUCTIVE STABILIZATION; INHIBITION, IRON OXIDES, BACTERIAL REDUCTION

Citation Formats

Wielinga, B., B. Bostick, R.F. Rosenzweig, and S. Fendorf. Inhibition of bacterially promoted uranium reduction: Ferric (hydr)oxides as competitive electron acceptors.. United States: N. p., 2000. Web. doi:10.1021/es991189l.
Wielinga, B., B. Bostick, R.F. Rosenzweig, & S. Fendorf. Inhibition of bacterially promoted uranium reduction: Ferric (hydr)oxides as competitive electron acceptors.. United States. doi:10.1021/es991189l.
Wielinga, B., B. Bostick, R.F. Rosenzweig, and S. Fendorf. Mon . "Inhibition of bacterially promoted uranium reduction: Ferric (hydr)oxides as competitive electron acceptors.". United States. doi:10.1021/es991189l.
@article{osti_790243,
title = {Inhibition of bacterially promoted uranium reduction: Ferric (hydr)oxides as competitive electron acceptors.},
author = {Wielinga, B. and B. Bostick and R.F. Rosenzweig and S. Fendorf},
abstractNote = {Reduction of hexavalent to tetravalent uranium results in a marked decrease in the mobility of this hazardous element. Microbial reduction is the most kinetic viable mechanism for such a reaction. Unfortunately, alternate terminal electron acceptors may thus compete with uranyl. We examine the role of common iron oxides on uranyl reduction. Only poorly ordered iron oxides altered the degree and rate of hexavalent uranium reduction and the effect was transitory.},
doi = {10.1021/es991189l},
journal = {Environmental Science and Technology},
number = 11,
volume = 34,
place = {United States},
year = {2000},
month = {5}
}