Linked Life Data

14871209

Source:http://linkedlifedata.com/resource/pubmed/id/14871209

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-2-11
pubmed:abstractText
In order for established bioreactors to be effective for treating chemically mixed wastes such as metal working fluids (MWF) it is essential that they harbour microbial populations that can maintain sufficient active biomass and degrade each of the chemical constituents present. In this study we investigated the effectiveness of a bacterial consortium composed of four species (Clavibacter michiganensis, Methylobacterium mesophilicum, Rhodococcus erythropolis and Pseudomonas putida), assembled on the basis of their apparent ubiquity in waste MWF, degradation ability and tolerance to fluctuating chemistry of the waste. The temporal dynamics of the inoculum and its effects on the fate of individual chemical components of the waste were studied, by regular sampling, over 400 h. Using a complementary approach of culture with chemotaxonomic (FAME) analysis and applying group specific probes (FISH), the inoculum was found to represent a significant component of the community in bioreactors with and without presence of indigenous MWF populations. In addition, the reduction in the COD by the consortium was approximately 85% of the total pollution load, and 30-40% more effectively than any other treatment (indigenous MWF community alone or activated sludge). Furthermore, all the chemical constituents, including the biocide (a formaldehyde release agent) demonstrated > 60% reduction. Many chemical components of the MWF proved to be recalcitrant in the other treatments. The results of this study confirm that assemblage of an inoculum, based on a comprehensive knowledge of the indigenous microbial community, in the target habitat, is a highly effective way of selecting microbial populations for bioaugmentation of bioreactors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1462-2912
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
254-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:14871209-Actinomycetales, pubmed-meshheading:14871209-Bacteria, pubmed-meshheading:14871209-Biodegradation, Environmental, pubmed-meshheading:14871209-Bioreactors, pubmed-meshheading:14871209-Colony Count, Microbial, pubmed-meshheading:14871209-Dicarboxylic Acids, pubmed-meshheading:14871209-Ecosystem, pubmed-meshheading:14871209-Fatty Acids, pubmed-meshheading:14871209-Gas Chromatography-Mass Spectrometry, pubmed-meshheading:14871209-Glycerol, pubmed-meshheading:14871209-Industrial Waste, pubmed-meshheading:14871209-Metallurgy, pubmed-meshheading:14871209-Methylobacterium, pubmed-meshheading:14871209-Oxidation-Reduction, pubmed-meshheading:14871209-Propylene Glycol, pubmed-meshheading:14871209-Pseudomonas putida, pubmed-meshheading:14871209-Rhodococcus, pubmed-meshheading:14871209-Sewage, pubmed-meshheading:14871209-Triazoles, pubmed-meshheading:14871209-Waste Disposal, Fluid, pubmed-meshheading:14871209-Water Pollutants, Chemical, pubmed-meshheading:14871209-Water Purification
pubmed:year
2004
pubmed:articleTitle
Temporal dynamics and degradation activity of an bacterial inoculum for treating waste metal-working fluid.
pubmed:affiliation
Natural Environment Research Council, Centre for Ecology and Hydrology - Oxford, Virology and Environmental Microbiology, Mansfield Road, Oxford, OX1 3SR, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't