URI | http://purl.tuc.gr/dl/dias/3A081F23-9B45-4538-82E1-D39F065BE7BF | - |
Identifier | https://doi.org/10.1007/BF00768737 | - |
Language | en | - |
Extent | 9 pages | en |
Title | Numerical modeling of three-dimensional contaminant migration from dissolution of multicomponent NAPL pools in saturated porous media | en |
Creator | Chrysikopoulos Constantinos | en |
Creator | Χρυσικοπουλος Κωνσταντινος | el |
Creator | K. Y. Lee | en |
Content Summary | A three-dimensional model for contaminant
transport resulting from the dissolution of multicomponent
nonaqueous phase liquid (NAPL) pools in threedimensional
saturated subsurface formations is developed.
The solution is obtained numerically by a finite-difference
scheme, and it is suitable for homogeneous porous media
with unidirectional interstitial velocity. Each dissolved
component may undergo first-order decay and may sorb
under local equilibrium conditions. It is also assumed that
the dissolution process is mass transfer limited. The nonaqueous
phase activity coefficients of the NAPL pool
components are evaluated at each time step. The model
behavior is illustrated through a synthetic example with
a NAPL pool consisting of a mixture of TCA (1,1,2-
trichloroethane) and TCE (trichloroethylene). The numerical
solution presented in this work is in good agreement
with a recently developed analytical solution for the special
case of a single component NAPL pool. The results
indicate the importance of accounting for the necessary
changes in the organic phase activity which significantly
affects the equilibrium aqueous solubility | en |
Type of Item | Peer-Reviewed Journal Publication | en |
Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
License | http://creativecommons.org/licenses/by/4.0/ | en |
Date of Item | 2015-09-23 | - |
Date of Publication | 1995 | - |
Bibliographic Citation | K. Y. Lee , C. V. Chrysikopoulos, "Numerical modeling of three-dimensional contaminant migration from dissolution of multicomponent NAPL pools
in saturated porous media " ,Environ. Geo. ,vol. 26,no.3, pp.157-165,1995.doi:10.1007/BF00768737 | en |