20227132

Source:http://linkedlifedata.com/resource/pubmed/id/20227132

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0012621, umls-concept:C0449416, umls-concept:C0577559, umls-concept:C1710706
pubmed:issue	1-4
pubmed:dateCreated	2010-5-3
pubmed:abstractText	Models that link simplified descriptions of dense non-aqueous phase liquid (DNAPL) source zone architecture with predictions of mass flux can be effective screening tools for evaluation of source zone management strategies. Recent efforts have focused on the development and implementation of upscaled models to approximate the relationship between mass removal and flux-averaged, down-gradient contaminant concentration (or mass flux) reduction. The efficacy of these methods has been demonstrated for ganglia-dominated source zones. This work extends these methods to source zones dominated by high-saturation DNAPL pools. An existing upscaled mass transfer model was modified to reproduce dissolution behavior in pool-dominated scenarios by employing a two-domain (ganglia and pools) representation of the source zone. The two-domain upscaled model is parameterized using the initial fraction of the source zone that exists as pool regions, the initial fraction of contaminant eluting from these pool regions, and the flux-averaged down-gradient contaminant concentration. Comparisons of model predictions with a series of three-dimensional source zone numerical simulations and data from two-dimensional aquifer cell experiments demonstrate the ability of the model to predict DNAPL dissolution from ganglia- and pool-dominated source zones for all levels of mass recovery.
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/8805644
pubmed:citationSubset	IM
pubmed:chemical	http://linkedlifedata.com/resource/pubmed/chemical/Water Pollutants, Chemical
pubmed:status	MEDLINE
pubmed:month	May
pubmed:issn	1873-6009
pubmed:author	pubmed-author:AbriolaLinda MLM, pubmed-author:ChristJohn AJA, pubmed-author:PennellKurt DKD, pubmed-author:RamsburgC AndrewCA
pubmed:copyrightInfo	Published by Elsevier B.V.
pubmed:issnType	Electronic
pubmed:day	20
pubmed:volume	114
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	18-34
pubmed:meshHeading	pubmed-meshheading:20227132-Computer Simulation, pubmed-meshheading:20227132-Models, Chemical, pubmed-meshheading:20227132-Water Pollutants, Chemical
pubmed:year	2010
pubmed:articleTitle	Predicting DNAPL mass discharge from pool-dominated source zones.
pubmed:affiliation	Department of Civil and Environmental Engineering, US Air Force Academy, Colorado Springs, CO, USA. john.christ@usafa.edu
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, Non-P.H.S.