2008
DOI: 10.1016/j.jconhyd.2008.04.003
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Application of a lumped-process mathematical model to dissolution of non-uniformly distributed immiscible liquid in heterogeneous porous media

Abstract: The use of a lumped-process mathematical model to simulate the complete dissolution of immiscible liquid non-uniformly distributed in physically heterogeneous porous-media systems was investigated. The study focused specifically on systems wherein immiscible liquid was poorly accessible to flowing water. Two representative, idealized scenarios were examined, one wherein immiscible liquid at residual saturation exists within a lower-permeability unit residing in a higher-permeability matrix, and one wherein imm… Show more

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Cited by 23 publications
(27 citation statements)
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References 45 publications
(64 reference statements)
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“…At later stages when the water starts to penetrate into the contaminated area due to increase in aqueous phase relative permeability, the mass transfer rate increased substantially. Similar results were reported by Marble et al [107] and Zhang et al [122]. Page et al [123] also showed that the reduction of effluent concentrations due to increased velocity is not significant compared to bypassing of NAPL.…”
Section: Field Scalesupporting
confidence: 83%
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“…At later stages when the water starts to penetrate into the contaminated area due to increase in aqueous phase relative permeability, the mass transfer rate increased substantially. Similar results were reported by Marble et al [107] and Zhang et al [122]. Page et al [123] also showed that the reduction of effluent concentrations due to increased velocity is not significant compared to bypassing of NAPL.…”
Section: Field Scalesupporting
confidence: 83%
“…A number of studies have developed similar Sherwood formulations (e.g., [8,32,[99][100][101]) from meso-scale experiments whereby the NAPL was mostly in the form of distributed blobs while Nambi and Powers [36] is the only study that was based on pool NAPL configuration. In recent years, several studies have also shown that the use of the modified Sherwood formulations may lead to contradicting results when used in numerical models even though they have the same input parameters [83,84,90,98,[102][103][104][105][106][107][108]. This is mostly attributed to differences in the specific experimental conditions used in developing these models.…”
Section: Meso Scalementioning
confidence: 99%
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“…Several studies have examined specific relationships between mass flux reduction and mass removal Rao and Jawitz 2003;Brooks et al 2004;Lemke et al 2004;Parker and Park 2004;Soga et al 2004;Falta et al 2005;Jawitz et al 2005;NRC 2005;Fure et al 2006;Lemke and Abriola 2006;Brusseau et al 2007Brusseau et al , 2008Basu et al 2008;DiFilippo and Brusseau 2008;Marble et al 2008;Carroll and Brusseau 2009). Many of these studies have generally categorized mass flux behavior as ideal or nonideal based on the degree of physical heterogeneity of the porous medium (or aquifer) and/or by the distribution of immiscible liquid in the system.…”
Section: Mass Flux Behaviormentioning
confidence: 99%
“…Evaluating the enhanced-solubilization experiments based on consistent comparison is critical for predicting contaminant transport, conducting risk assessments, and implementing appropriate remediation strategies for sites contaminated by immiscible liquids. Further knowledge, combined from previous studies within more complex systems (e.g., Boving and Brusseau 2000;Brusseau et al 2002;Lemke et al 2004;Fure et al 2006;Basu et al 2008;Brusseau et al 2007Brusseau et al , 2008DiFilippo and Brusseau 2008;Marble et al 2008;Carroll and Brusseau 2009) and newly developed experiments, will allow for a better understanding of the processes that control mass flux behavior, elution behavior, and mass removal from remediation systems utilizing enhanced-solubilization flushing.…”
mentioning
confidence: 99%