Linked Life Data

11525474

Source:http://linkedlifedata.com/resource/pubmed/id/11525474

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-8-29
pubmed:abstractText
Lime-activated pulverised fuel ash (PFA) has been leach tested under a range of pH conditions and the permeability of compacted samples determined using distilled water and aqueous solutions of Ca2+, Zn2+, Cd2+ and Mg2+. Although permeabilities were relatively high when tested with distilled water (> 1x10(-7) m/s), permeation with 0.05M metal solutions resulted in rapid reductions in permeability to less than 1x10(-10) m/s. Leachate and permeant solution analysis shows that metal ion release from samples is low. The reduction in permeability is believed to be due to pore sealing resulting primarily from metal hydroxide precipitation and results in a metal concentration gradient across the sample thickness. Lime-activated PFA therefore acts as both a chemical and physical barrier to metal ion migration and has the potential to form low permeability barriers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0734-242X
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
35-44
pubmed:dateRevised
2008-7-9
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Permeability of lime-activated pulverised fuel ash to metal-containing permeants.
pubmed:affiliation
Centre for Environmental Control and Waste Management, Department of Civil and Environmental Engineering, Imperial College of Science, Technology and Medicine, London, UK.
pubmed:publicationType
Journal Article