Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns
Nanocrystalline titanium dioxide was injected into sand columns to simulate subsurface injection for creation of a permeable treatment barrier. Past usage of this material as an ex situ pilot scale treatment filter has shown that it has a high adsorption capacity for a number of heavy metals and the...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | , |
| Format: | article |
| Published: |
2008
|
| Online Access: | http://hdl.handle.net/10725/3223 http://dx.doi.org/10.1016/j.chemosphere.2007.12.030 http://www.sciencedirect.com/science/article/pii/S0045653507015457?np=y |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1864513460211023872 |
|---|---|
| author | Choy, Christine Chin |
| author2 | Wazne, Mahmoud Meng, Xiaoguang |
| author2_role | author author |
| author_facet | Choy, Christine Chin Wazne, Mahmoud Meng, Xiaoguang |
| author_role | author |
| dc.creator.none.fl_str_mv | Choy, Christine Chin Wazne, Mahmoud Meng, Xiaoguang |
| dc.date.none.fl_str_mv | 2008 2016-03-01T08:18:40Z 2016-03-01T08:18:40Z 2016-03-01 |
| dc.identifier.none.fl_str_mv | 0045-6535 http://hdl.handle.net/10725/3223 http://dx.doi.org/10.1016/j.chemosphere.2007.12.030 Choy, C. C., Wazne, M., & Meng, X. (2008). Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns. Chemosphere, 71(9), 1794-1801. http://www.sciencedirect.com/science/article/pii/S0045653507015457?np=y |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Chemosphere |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Nanocrystalline titanium dioxide was injected into sand columns to simulate subsurface injection for creation of a permeable treatment barrier. Past usage of this material as an ex situ pilot scale treatment filter has shown that it has a high adsorption capacity for a number of heavy metals and therefore would be a good candidate for injection technology. Three suspension concentrations (50, 75 and 100 mg l−1) were pumped through packed sand columns at different flow velocities (3.0, 6.8 and 14.1 cm min−1). Little to no particles was detected in the effluent. Most of the nanoparticles remained in the sand columns, with an increasing then decreasing retained solids pattern. Application of a one-dimensional advection–dispersion flow model, that included two empirical kinetic terms to account for particle retention in the porous media, produced data fits that followed the general trend of the data, but did not truly capture the concentration maxima in the data sets. Discussion of these results highlights the limited ability of existing models to aid in predicting particle retention of non-ideal materials for engineering purposes. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_3f84b58b3c88c4ad29b78f959cc0245d |
| identifier_str_mv | 0045-6535 Choy, C. C., Wazne, M., & Meng, X. (2008). Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns. Chemosphere, 71(9), 1794-1801. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/3223 |
| publishDate | 2008 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columnsChoy, Christine ChinWazne, MahmoudMeng, XiaoguangNanocrystalline titanium dioxide was injected into sand columns to simulate subsurface injection for creation of a permeable treatment barrier. Past usage of this material as an ex situ pilot scale treatment filter has shown that it has a high adsorption capacity for a number of heavy metals and therefore would be a good candidate for injection technology. Three suspension concentrations (50, 75 and 100 mg l−1) were pumped through packed sand columns at different flow velocities (3.0, 6.8 and 14.1 cm min−1). Little to no particles was detected in the effluent. Most of the nanoparticles remained in the sand columns, with an increasing then decreasing retained solids pattern. Application of a one-dimensional advection–dispersion flow model, that included two empirical kinetic terms to account for particle retention in the porous media, produced data fits that followed the general trend of the data, but did not truly capture the concentration maxima in the data sets. Discussion of these results highlights the limited ability of existing models to aid in predicting particle retention of non-ideal materials for engineering purposes.PublishedN/A2016-03-01T08:18:40Z2016-03-01T08:18:40Z20082016-03-01Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0045-6535http://hdl.handle.net/10725/3223http://dx.doi.org/10.1016/j.chemosphere.2007.12.030Choy, C. C., Wazne, M., & Meng, X. (2008). Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns. Chemosphere, 71(9), 1794-1801.http://www.sciencedirect.com/science/article/pii/S0045653507015457?np=yenChemosphereinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/32232019-02-01T14:09:57Z |
| spellingShingle | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns Choy, Christine Chin |
| status_str | publishedVersion |
| title | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| title_full | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| title_fullStr | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| title_full_unstemmed | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| title_short | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| title_sort | Application of an empirical transport model to simulate retention of nanocrystalline titanium dioxide in sand columns |
| url | http://hdl.handle.net/10725/3223 http://dx.doi.org/10.1016/j.chemosphere.2007.12.030 http://www.sciencedirect.com/science/article/pii/S0045653507015457?np=y |