Numerical study on kinetic/equilibrium behaviour of dissolution of toluene under variable subsurface conditions
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Cites background from "Numerical study on kinetic/equilibr..."
...Dynamic 77 nature of groundwater table causes significant spreading of pooled LNAPL in smear zone, 78 which considerably increases the LNAPL-water interphase area and resulted in accelerated 79 dissolution (Mobile et al. 2012; Vasudevan et al. 2014)....
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...This in turn significantly 332 increases dissolved phase concentration load to receiving groundwater and vapor 333 contamination to unsaturated pore air (Dobson et al. 2007; Vasudevan et al. 2014)....
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26 citations
Cites background from "Numerical study on kinetic/equilibr..."
...Petroleum hydrocarbon dissolution is often described in terms of mass transfer at the NAPL/water interface assuming local equilibrium (Seagren et al., 1999; Sulaymon and Gzar, 2011) or rate limited mass transfer (Miller et al., 1990; Imhoff et al., 1994; Vasudevan et al., 2014)....
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References
523 citations
"Numerical study on kinetic/equilibr..." refers background or methods in this paper
...…the non-equilibrium nature of dissolution mass transfer, a first-order driving force model is employed here with a lumped mass transfer coefficient inclusive of the surface area parameter and a concentration gradient term (Nambi & Powers, 2003; Powers et al., 1994) as given in Equation (2)....
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...Many empirical correlations have been in practice for estimating dissolution mass transfer coefficient in terms of modified Sherwood number, which is being represented as a function of flow and NAPL properties for single compound from residually entrapped porous system with/without considering the effect of heterogeneity (Imhoff et al., 1994; Mayer & Miller, 1996; Nambi & Powers, 2003; Powers et al., 1994; Schaerlaekens et al., 2000)....
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...…which is being represented as a function of flow and NAPL properties for single compound from residually entrapped porous system with/without considering the effect of heterogeneity (Imhoff et al., 1994; Mayer & Miller, 1996; Nambi & Powers, 2003; Powers et al., 1994; Schaerlaekens et al., 2000)....
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...Powers et al. (1994) suggested that dissolution will be faster for relatively small spherical NAPL ganglia having larger interfacial areas for an equivalent NAPL saturation....
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...The correlation developed by Powers et al. (1994) is widely referred for uniform residual saturation in a homogeneous porous media, but is limited in application for similar saturation conditions....
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366 citations
"Numerical study on kinetic/equilibr..." refers background in this paper
...The correlation by Imhoff et al. (1994) is incorporating the effect of dissolution fingering in terms of relative domain size, thereby suggesting the effect of contamination history on mass transfer coefficient, but it is substantially poor in predicting the dissolution breakthrough for laboratory…...
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...…which is being represented as a function of flow and NAPL properties for single compound from residually entrapped porous system with/without considering the effect of heterogeneity (Imhoff et al., 1994; Mayer & Miller, 1996; Nambi & Powers, 2003; Powers et al., 1994; Schaerlaekens et al., 2000)....
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...Many empirical correlations have been in practice for estimating dissolution mass transfer coefficient in terms of modified Sherwood number, which is being represented as a function of flow and NAPL properties for single compound from residually entrapped porous system with/without considering the effect of heterogeneity (Imhoff et al., 1994; Mayer & Miller, 1996; Nambi & Powers, 2003; Powers et al., 1994; Schaerlaekens et al., 2000)....
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265 citations
"Numerical study on kinetic/equilibr..." refers background in this paper
...…coefficient by using empirical mass transfer relations, thereby enabling to link with the macro-scale Darcy flux (Chu, Kitanidis, & McCarty, 2007; Geller & Hunt, 1993; Imhoff, Jaffe, & Pinder, 1994; Kim and Chrysikopoulos, 1999; Liu, Tindall, Friedel, & Zhang, 2007; Mayer & Miller, 1996; Nambi &…...
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...In reality, the rate-limited dissolution is further complicated by the physical and biological processes of sorption and biodegradation, respectively (Clement, Gautam, Lee, Truex, & Davis, 2004; Geller & Hunt, 1993; Heyse, Augustijn, Rao, & Delfino, 2002)....
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252 citations
201 citations