Simple screening models of NAPL dissolution in the subsurface

Journal of Contaminant Hydrology
Jianting Zhu, Jonathan F Sykes

Abstract

Three simple screening models of nonaqueous phase liquid (NAPL) dissolution in the subsurface are proposed based on the NAPL mass conservation and the assumption of proportionality between the residual NAPL source zone concentration and the remaining residual NAPL mass. The purpose of the proposed models is to predict the solute concentration in the zone of the residual NAPL as a result of dissolution. The predicted source zone concentration decrease is used to simulate and account for the decrease of dissolution rate with time. The proposed simple NAPL dissolution models enable the pseudo-equilibrium formulation to be used and therefore the numerical simulations for field application problems can be simplified compared to the non-equilibrium counterpart. With proper choice of empirical parameters, the proposed simple screening models can work as well as more complex dissolution rate correlation models, such as that of Imhoff et al. [Water Resour. Res. 30 (1994) 307-320]. It is found that the proposed models are very good for quantifying non-equilibrium dissolution, which is characterized by tailing of breakthrough curves. The models are especially useful for situations of small residual NAPL saturation, which are typical for m...Continue Reading

References

Jan 1, 1993·Water Resources Research·J T Geller, J R Hunt

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Citations

Aug 10, 2012·Environmental Science & Technology·Michael A MobileDaniel L Gallagher
Jun 15, 2014·Environmental Science and Pollution Research International·Bertrand LetermeDiederik Jacques
Feb 9, 2016·Journal of Contaminant Hydrology·Michael MobileDaniel Gallagher
Aug 15, 2014·Journal of Contaminant Hydrology·Fang WangJames W Jawitz
Mar 17, 2010·Journal of Contaminant Hydrology·John A ChristLinda M Abriola
Jun 19, 2009·Journal of Contaminant Hydrology·James K HendersonDavid L Freedman
Jun 10, 2008·Journal of Contaminant Hydrology·Fernando M D'AffonsecaPeter Grathwohl
Apr 15, 2008·Journal of Contaminant Hydrology·Erica L Difilippo, Mark L Brusseau
Mar 18, 2008·Journal of Contaminant Hydrology·Nandita B BasuJames W Jawitz
Oct 2, 2007·Journal of Contaminant Hydrology·Nandita B BasuK Hatfield
Jan 30, 2007·Journal of Contaminant Hydrology·Alex Mayer, Karen L Endres
Jun 24, 2015·Environmental Science and Pollution Research International·Bertrand Leterme, Diederik Jacques
Jul 22, 2006·Journal of Contaminant Hydrology·T P Chan, Rao S Govindaraju
Aug 6, 2013·Journal of Contaminant Hydrology·Fang WangJames W Jawitz
Oct 26, 2016·Journal of Contaminant Hydrology·Minjune YangJames W Jawitz
Feb 20, 2019·Journal of Contaminant Hydrology·Minjune YangJames W Jawitz
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
Nov 26, 2009·Environmental Science & Technology·X Chen, J W Jawitz

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