Source:http://linkedlifedata.com/resource/pubmed/id/15981279
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2005-7-26
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pubmed:abstractText |
Arsenic is one of the major groundwater contaminants worldwide. It was previously demonstrated that the beta-proteobacterium Cenibacterium arsenoxidans has an efficient As[III] oxidation ability. The present study was conducted to evaluate the performance of alginate-immobilized ULPAs1 in the oxidation of As[III] to As[V] in batch reactors. A two-level full factorial experimental design was applied to investigate the influence of main parameters involved in the oxidation process, i.e., pH (7-8), temperature (4 degrees C-25 degrees C), kind of nutrient media (2%-20% sauerkraut brine), and arsenic concentration (10-100 mg/L). One hundred milligram per liter of As[III] was fully oxidized by calcium-alginate immobilized cells in 1 h. It was found that the temperature as well as the kind of nutrient media used were significant parameters at a 95% confidence interval whereas only temperature was a significant parameter at a 99% confidence interval. The immobilization of the As[III] oxidizing strain in alginate beads offers a promising way to implement new treatment processes in the remediation of arsenic contaminated waters.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0006-3592
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 2005 Wiley Periodicals, Inc.
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pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
91
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
441-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:15981279-Alginates,
pubmed-meshheading:15981279-Arsenic,
pubmed-meshheading:15981279-Betaproteobacteria,
pubmed-meshheading:15981279-Bioreactors,
pubmed-meshheading:15981279-Cells, Immobilized,
pubmed-meshheading:15981279-Culture Media,
pubmed-meshheading:15981279-Fresh Water,
pubmed-meshheading:15981279-Oxidation-Reduction,
pubmed-meshheading:15981279-Water Microbiology,
pubmed-meshheading:15981279-Water Pollutants, Chemical
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pubmed:year |
2005
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pubmed:articleTitle |
Arsenite oxidation in batch reactors with alginate-immobilized ULPAs1 strain.
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pubmed:affiliation |
Laboratoire de Dynamique, Evolution et Expression de Génomes de Microorganismes, FRE 2326 Université Louis Pasteur-CNRS, 28 rue Goethe, 67083 Strasbourg Cédex, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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