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Experimental and mathematical modeling studies on Cr(VI) reduction by CRB, SRB and IRB, individually and in combination
, V. Somasundaram,
Published in Elsevier B.V.
2009
PMID: 19692172
Volume: 172
   
Issue: 2-3
Pages: 606 - 617
Abstract
Cr(VI) reduction studies were carried out with chromium reducing bacteria (CRB), sulphate reducing bacteria (SRB) and iron reducing bacteria (IRB), individually and in combination. Biokinetic parameters such as maximum specific growth rate (μmax), half saturation constant (Ks), yield coefficient (YT) and inhibition coefficient (Ki) for individual cultures were evaluated. A mathematical model was proposed for simulating the chromium reduction, COD utilization and biomass growth, by individual cultures as well as by a combination of two or three different cultures, for different initial Cr(VI), SO42- and Fe(III) concentrations. The biokinetic parameters evaluated from one set of experiments for individual cultures were utilized in all the validation studies. The performance of the mathematical model in terms of the dimensionless modified coefficient of efficiency (E) indicated that the proposed model simulates the system behavior very well. © 2009 Elsevier B.V. All rights reserved.
About the journal
JournalData powered by TypesetJournal of Hazardous Materials
PublisherData powered by TypesetElsevier B.V.
ISSN03043894
Open AccessNo
Concepts (40)
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    BIOKINETIC PARAMETERS
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    Hexavalent chromium
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    INHIBITION MODEL
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    IRON REDUCING BACTERIA
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    SULPHATE REDUCING BACTERIA
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    Bacteriology
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    Biomass
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    Chromium
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    Chromium compounds
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    Computer simulation
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    Iron compounds
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    Strain relaxation
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    Mathematical models
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    Inhibition
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    IRON-REDUCING BACTERIUM
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    Modeling
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    Numerical model
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    Reduction
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    SULFATE-REDUCING BACTERIUM
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    Article
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    Bacterium culture
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    Chemical oxygen demand
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    CHROMIUM REDUCING BACTERIUM
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    Controlled study
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    Experimental study
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    Growth rate
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    IRON REDUCING BACTERIUM
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    Mathematical model
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    Nonhuman
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    PROKARYOTES BY METABOLISM
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    SULFATE REDUCING BACTERIUM
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    Validation study
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    Waste component removal
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    Bacteria
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    Biodegradation, environmental
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    Iron
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    Kinetics
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    Models, theoretical
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    Oxidation-reduction
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    SULFATES