dc.contributor.author | Shafieiyoun, Saeid | |
dc.contributor.author | Thomson, Neil R. | |
dc.date.accessioned | 2018-06-29 15:34:02 (GMT) | |
dc.date.available | 2018-06-29 15:34:02 (GMT) | |
dc.date.issued | 2018-06-01 | |
dc.identifier.uri | https://doi.org/10.1016/j.jconhyd.2018.04.002 | |
dc.identifier.uri | http://hdl.handle.net/10012/13453 | |
dc.description | The final publication is available at Elsevier via http://dx.doi.org/10.1016/j.jconhyd.2018.04.002 © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | en |
dc.description.abstract | An experimental and computational study was performed to investigate the role of multi-component intra-NAPL diffusion on NAPL-water mass transfer. Molecular weight and the NAPL component concentrations were determined to be the most important parameters affecting intra-NAPL diffusion coefficients. Four NAPLs with different viscosities but the same quantified mass were simulated. For a spherical NAPL body, a combination of NAPL properties and interphase mass transfer rate can result in internal diffusion limitations. When the main intra-NAPL diffusion coefficients are in the range of self-diffusion coefficients (10−5 to 10−6 cm2/s), dissolution is not limited by internal diffusion except for high mass transfer rate coefficients (>180 cm/day). For a complex and relatively high viscous NAPL (>50 g/(cm s)), smaller intra-NAPL diffusion coefficients (<10−8) are expected and even low mass transfer rate coefficients (~6 cm/day) can result in diffusion-limited dissolution. | en |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada Collaborative Research Development Grant (NSERC) (CRDPJ 429357 - 2011) | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Intra-NAPL diffusion | en |
dc.subject | Intra-NAPL concentration gradients | en |
dc.subject | Rate-limited mass transfer | en |
dc.subject | MGP residuals | en |
dc.title | The role of intra-NAPL diffusion on mass transfer from MGP residuals | en |
dc.type | Article | en |
dcterms.bibliographicCitation | Shafieiyoun, S., & Thomson, N. R. (2018). The role of intra-NAPL diffusion on mass transfer from MGP residuals. Journal of Contaminant Hydrology, 213, 49–61. https://doi.org/10.1016/j.jconhyd.2018.04.002 | en |
uws.contributor.affiliation1 | Faculty of Engineering | en |
uws.contributor.affiliation2 | Civil and Environmental Engineering | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Reviewed | en |
uws.scholarLevel | Faculty | en |