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Critical factors limiting microbial ...

Meyer, Brent A.

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Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption./
Author:	Meyer, Brent A.
Description:	325 p.
Notes:	Source: Masters Abstracts International, Volume: 43-03, page: 0799.
Contained By:	Masters Abstracts International43-03.
Subject:	Geochemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1423850
ISBN:	9780496121632

Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption.
Meyer, Brent A.

Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption. - 325 p.

Source: Masters Abstracts International, Volume: 43-03, page: 0799.

Thesis (M.S.)--University of Nevada, Reno, 2005.

The critical factors affecting microbial Fe3+ and Mn 4+ reduction were studied by measuring the production of Fe 2+ and Mn2+ in batch reactors containing ferrihydrite and MnO2, respectively. In support of this study, pre-existing methods for creating reduced growth media, determining total reduced ion concentrations, and modeling reduced ion production were significantly modified for application to the experimental conditions of this study. The model results showed that the growth of iron and manganese reducing bacteria is limited by the concentration of reduction sites provided by the oxide surface and by the concentration of metal ions in solution. Maximum productions rates were found to be linearly correlated with oxide concentration while the culture's tolerance to dissolved ions was determined to be the major growth limiting factor causing the transition from exponential to stationary growth. Adsorption of arsenic was found to significantly reduce the concentration of surface reduction sites thereby limiting microbial growth.

ISBN: 9780496121632Subjects--Topical Terms:

539092
Geochemistry.

Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption.
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040 $a UnM $c UnM
100 1 $a Meyer, Brent A. $3 1913062
245 1 0 $a Critical factors limiting microbial iron(III)- and manganese(IV)-oxide reduction: Oxide surface area, dissolved concentration of reduced ion, and arsenic absorption.
300 $a 325 p.
500 $a Source: Masters Abstracts International, Volume: 43-03, page: 0799.
500 $a Adviser: Lisa L. Stillings.
502 $a Thesis (M.S.)--University of Nevada, Reno, 2005.
520 $a The critical factors affecting microbial Fe3+ and Mn 4+ reduction were studied by measuring the production of Fe 2+ and Mn2+ in batch reactors containing ferrihydrite and MnO2, respectively. In support of this study, pre-existing methods for creating reduced growth media, determining total reduced ion concentrations, and modeling reduced ion production were significantly modified for application to the experimental conditions of this study. The model results showed that the growth of iron and manganese reducing bacteria is limited by the concentration of reduction sites provided by the oxide surface and by the concentration of metal ions in solution. Maximum productions rates were found to be linearly correlated with oxide concentration while the culture's tolerance to dissolved ions was determined to be the major growth limiting factor causing the transition from exponential to stationary growth. Adsorption of arsenic was found to significantly reduce the concentration of surface reduction sites thereby limiting microbial growth.
590 $a School code: 0139.
650 4 $a Geochemistry. $3 539092
650 4 $a Biology, Microbiology. $3 1017734
650 4 $a Hydrology. $3 545716
690 $a 0996
690 $a 0410
690 $a 0388
710 2 0 $a University of Nevada, Reno. $3 626634
773 0 $t Masters Abstracts International $g 43-03.
790 1 0 $a Stillings, Lisa L., $e advisor
790 $a 0139
791 $a M.S.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1423850