Linked Life Data

21621822

Source:http://linkedlifedata.com/resource/pubmed/id/21621822

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
2011-6-14
pubmed:abstractText
Four identical pilot-scale landfill reactors with different alternative composite liners were simultaneously operated for a period of about 540 days to investigate and to simulate the migration behaviors of phenolic compounds (phenol, 2-CP, 2-MP, 3-MP, 4-MP, 2-NP, 4-NP, 2,4-DNP, 2,4-DCP, 2,6-DCP, 2,4,5-TCP, 2,4,6-TCP, 2,3,4,6-TeCP, PCP) and heavy metals (Pb, Cu, Zn, Cr, Cd, Ni) from landfill leachate to the groundwater. Alternative landfill liners of four reactors consist of R1: Compacted clay liner (10 cm+10 cm, k=10(-8)m/sn), R2: Geomembrane (2 mm HDPE)+compacted clay liner (10 cm+10 cm, k=10?? m/sn), R3: Geomembrane (2 mm HDPE)+compacted clay liner (10 cm, k=10?? m/sn)+bentonite liner (2 cm)+compacted clay liner (10 cm, k=10?? m/sn), and R4: Geomembrane (2 mm HDPE)+compacted clay liner (10 cm, k=10?? m/sn)+zeolite liner (2 cm)+compacted clay liner (10 cm, k=10?? m/sn). Wastes representing Istanbul municipal solid wastes were disposed in the reactors. To represent bioreactor landfills, reactors were operated by leachate recirculation. To monitor and control anaerobic degradation in the reactors, variations of conventional parameters (pH, alkalinity, chloride, conductivity, COD, TOC, TKN, ammonia and alcaly metals) were also investigated in landfill leachate samples. The results of this study showed that about 35-50% of migration of organic contaminants (phenolic compounds) and 55-100% of migration of inorganic contaminants (heavy metals) to the model groundwater could be effectively reduced with the use of bentonite and zeolite materials in landfill liner systems. Although leachate contaminants can reach to the groundwater in trace concentrations, findings of this study concluded that the release of these compounds from landfill leachate to the groundwater may potentially be of an important environmental concern based on the experimental findings.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1879-1026
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
409
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3183-96
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Migration behavior of landfill leachate contaminants through alternative composite liners.
pubmed:affiliation
Department of Environmental Engineering, Faculty of Civil Engineering Yildiz Technical University, 34220 Davutpasa, Esenler, Istanbul, Turkey. gvarank@yildiz.edu.tr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't