Compendium and synthesis of bacterial manganese reduction rates

Joel Z. Bandstra, Daniel E. Ross, Susan Louise Brantley, William D. Burgos

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have compiled time-series concentration data for the biological reduction of manganese(III/IV) published between 1985 and 2004 and fit these data with a simple hyperbolic rate expression or, when appropriate, one of its limiting forms. The compiled data and rate constants are available in Electronic Annex EA-1. The zero- and first-order rate constants appear to follow a log-normal distribution that could be used, for example, in predictive modeling of Mn-oxide reduction in a reactive transport scenario. We have also included details of the experimental procedures used to generate each time-series data-set in our compilation. These meta-data-mostly pertaining to the type and concentration of micro-organism, electron donor, and electron acceptor-enable us to examine the rate data for trends. We have computed a number of rudimentary, mono-variate statistics on the compiled data with the hope of stimulating both more detailed statistical analyses of the data and new experiments to fill gaps in the existing data-set. We have also analyzed the data with parametric models based on the log-normal distribution and rate equations that are hyperbolic in the concentration of cells and Mn available for reduction. This parametric analysis allows us to provide best estimates of zero- and first-order rate constants both ignoring and accounting for the meta-data.

Original languageEnglish (US)
Pages (from-to)337-351
Number of pages15
JournalGeochimica et Cosmochimica Acta
Volume75
Issue number2
DOIs
StatePublished - Jan 15 2011

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Manganese
manganese
Rate constants
Normal distribution
Metadata
Time series
Electrons
metadata
Oxides
Cells
Statistics
time series
electron
reactive transport
rate
Experiments
oxide
modeling
experiment

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology

Cite this

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title = "Compendium and synthesis of bacterial manganese reduction rates",
abstract = "We have compiled time-series concentration data for the biological reduction of manganese(III/IV) published between 1985 and 2004 and fit these data with a simple hyperbolic rate expression or, when appropriate, one of its limiting forms. The compiled data and rate constants are available in Electronic Annex EA-1. The zero- and first-order rate constants appear to follow a log-normal distribution that could be used, for example, in predictive modeling of Mn-oxide reduction in a reactive transport scenario. We have also included details of the experimental procedures used to generate each time-series data-set in our compilation. These meta-data-mostly pertaining to the type and concentration of micro-organism, electron donor, and electron acceptor-enable us to examine the rate data for trends. We have computed a number of rudimentary, mono-variate statistics on the compiled data with the hope of stimulating both more detailed statistical analyses of the data and new experiments to fill gaps in the existing data-set. We have also analyzed the data with parametric models based on the log-normal distribution and rate equations that are hyperbolic in the concentration of cells and Mn available for reduction. This parametric analysis allows us to provide best estimates of zero- and first-order rate constants both ignoring and accounting for the meta-data.",
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Compendium and synthesis of bacterial manganese reduction rates. / Bandstra, Joel Z.; Ross, Daniel E.; Brantley, Susan Louise; Burgos, William D.

In: Geochimica et Cosmochimica Acta, Vol. 75, No. 2, 15.01.2011, p. 337-351.

Research output: Contribution to journalArticle

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