Linked Life Data

19959288

Source:http://linkedlifedata.com/resource/pubmed/id/19959288

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-3
pubmed:dateCreated
2010-2-1
pubmed:abstractText
The use of biocovers is a promising strategy toward mitigating CH(4) emission from smaller and/or older landfills. In this study, a filter bed material consisting of a mixture of earthworm cast and rice paddy soil in a biocover was evaluated. Although the CH(4) oxidation rate of the enriched paddy soil was 4.9 microg g-dry soil(-1) h(-1), it was enhanced to 25.1 microg g-dry soil(-1) h(-1) by adding an earthworm cast with a 3:7 ratio of earthworm cast:soil (wet weight). CO(2) was found as the final oxidation product of CH(4), and the mole ratio of CO(2) production to CH(4) consumption was 0.27. At a moisture content range of 15-40% and a temperature range of 20-40 degrees C, the CH(4) oxidation rates of the enriched mixture were more than 57% of the maximum rate obtained at 25% moisture content and 25 degrees C. By denaturing gradient gel electrophoresis analysis employing primers for the universal bacterial 16S rRNA gene, and terminal-restriction fragment length polymorphism analysis using primers for the pmoA gene, the bacterial and methanotrophic communities in the enriched mixture were mainly originate from paddy soil and earthworm cast, respectively. Both type I (mainly Methylocaldum) and type II methanotrophs (mainly Methylocystis) played important roles in CH(4) oxidation in the enriched mixture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1873-3336
pubmed:author
pubmed:copyrightInfo
2009 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
176
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
131-8
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Earthworm cast as a promising filter bed material and its methanotrophic contribution to methane removal.
pubmed:affiliation
Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 120-750, Republic of Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't