DNAPL source depletion: linking architecture and flux response

Journal of Contaminant Hydrology
Adrian D FureM D Annable

Abstract

The relationship between dense non-aqueous phase liquid (DNAPL) mass reduction and contaminant mass flux was investigated experimentally in four model source zones. The flow cell design for the experiments featured a segmented extraction well that allowed for analysis of spatially resolved flux information. This flux information was coupled with image analysis of the NAPL spatial distribution to investigate the relationship between flux and the up-gradient NAPL architecture. Results indicate that in the systems studied, the relationship between DNAPL mass reduction and contaminant mass flux was primarily controlled by the NAPL architecture. A specific definition of NAPL architecture was employed where the source zone is resolved into a collection of streamtubes with spatial variability in NAPL saturation along each streamtube integrated and transformed into an effective NAPL content for each streamtube. The distribution of NAPL contents among the streamtubes (NAPL architecture) controlled dissolution dynamics. Two simplified models, a streamtube model and an effective Damkohler number model, were investigated for their ability to simulate dissolution dynamics.

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Citations

May 9, 2012·Environmental Science & Technology·Hans F StrooMarvin Unger
Jul 11, 2012·Environmental Science & Technology·Heonki KimMichael D Annable
Feb 25, 2014·Water, Air, and Soil Pollution·Nihat Hakan AkyolMark L Brusseau
Aug 15, 2014·Journal of Contaminant Hydrology·Fang WangJames W Jawitz
Dec 1, 2015·Environmental Science & Technology·Charles SchaeferMichael D Annable
Nov 26, 2011·Journal of Contaminant Hydrology·Rhiannon E ErvinC Andrew Ramsburg
Oct 5, 2010·Journal of Contaminant Hydrology·Amir TaghavyLinda M Abriola
Mar 17, 2010·Journal of Contaminant Hydrology·John A ChristLinda M Abriola
Feb 24, 2009·Journal of Contaminant Hydrology·Kenneth C Carroll, Mark L Brusseau
Jul 18, 2008·Journal of Contaminant Hydrology·Michael C BrooksRichard E Smith
Jun 10, 2008·Journal of Contaminant Hydrology·Fernando M D'AffonsecaPeter Grathwohl
Mar 18, 2008·Journal of Contaminant Hydrology·Nandita B BasuJames W Jawitz
Oct 2, 2007·Journal of Contaminant Hydrology·Nandita B BasuK Hatfield
Aug 21, 2007·Journal of Contaminant Hydrology·John W E PageTissa Illangasekare
Jul 28, 2012·Ground Water·Bart T WilkingTissa H Illangasekare
Jan 15, 2010·Ground Water·Michael R West, Bernard H Kueper
Dec 24, 2014·Ground Water·Benjamin G PetriCarolyn C Sauck
Aug 6, 2013·Journal of Contaminant Hydrology·Fang WangJames W Jawitz
Feb 2, 2015·Journal of Contaminant Hydrology·Dominik HöyngFernando Mazo D'Affonseca
Apr 29, 2014·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Adam Tressler, Christopher Uchrin
Oct 26, 2016·Journal of Contaminant Hydrology·Minjune YangJames W Jawitz
Feb 3, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Heonki KimJaehyun Cho
Oct 27, 2018·Journal of Contaminant Hydrology·Michael C BrooksMichael D Annable
May 31, 2017·Journal of Contaminant Hydrology·Minjune YangJames W Jawitz
Jun 30, 2019·Journal of Contaminant Hydrology·Alexander A HaluskaMichael D Annable

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