Hydraulic Flow through Engineering Bentonite-Based Containment Barriers
This paper presents the use of software modelling as a tool to study the impact of hydraulic “resistivity” on the contaminant transport through bentonite-based containment barriers. A sensitivity analysis on the predicted data was carried out by varying the boundary conditions as well as the hyd...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Science Publications
2015
|
| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/228/ http://eprints.intimal.edu.my/228/1/Hydraulic%20Flow%20through%20Engineering%20BentoniteBased.pdf |
| _version_ | 1848766427094319104 |
|---|---|
| author | Loh, Eric Wooi Kee Chitral Wijeyesekera, Devapriya |
| author_facet | Loh, Eric Wooi Kee Chitral Wijeyesekera, Devapriya |
| author_sort | Loh, Eric Wooi Kee |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | This paper presents the use of software modelling as a tool to
study the impact of hydraulic “resistivity” on the contaminant transport
through bentonite-based containment barriers. A sensitivity analysis on
the predicted data was carried out by varying the boundary conditions as
well as the hydraulic resistance to flow through varying contaminant
transport parameters. Accordingly, both advective and diffusive flow
processes are considered as that which resists the flow. In particular, the
effect on the contaminant migration due to desiccation cracking is
explored. Laboratory evidence is provided and discussed to show how the
initial microstructure of the clay influences the development of
subsequent macro structural features such as shrinkage crack patterns.
The effect of these cracks and the intensity of cracking on the
contaminant migration are modelled and pragmatically discussed.
Additionally, the effect on the hydraulic conductivity of bentonite-based
barriers, when permeated with non-standard liquids is discussed and a
typical analytical output is presented. |
| first_indexed | 2025-11-14T11:50:58Z |
| format | Article |
| id | intimal-228 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:50:58Z |
| publishDate | 2015 |
| publisher | Science Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-2282016-09-14T03:51:36Z http://eprints.intimal.edu.my/228/ Hydraulic Flow through Engineering Bentonite-Based Containment Barriers Loh, Eric Wooi Kee Chitral Wijeyesekera, Devapriya TK Electrical engineering. Electronics Nuclear engineering This paper presents the use of software modelling as a tool to study the impact of hydraulic “resistivity” on the contaminant transport through bentonite-based containment barriers. A sensitivity analysis on the predicted data was carried out by varying the boundary conditions as well as the hydraulic resistance to flow through varying contaminant transport parameters. Accordingly, both advective and diffusive flow processes are considered as that which resists the flow. In particular, the effect on the contaminant migration due to desiccation cracking is explored. Laboratory evidence is provided and discussed to show how the initial microstructure of the clay influences the development of subsequent macro structural features such as shrinkage crack patterns. The effect of these cracks and the intensity of cracking on the contaminant migration are modelled and pragmatically discussed. Additionally, the effect on the hydraulic conductivity of bentonite-based barriers, when permeated with non-standard liquids is discussed and a typical analytical output is presented. Science Publications 2015 Article PeerReviewed text en http://eprints.intimal.edu.my/228/1/Hydraulic%20Flow%20through%20Engineering%20BentoniteBased.pdf Loh, Eric Wooi Kee and Chitral Wijeyesekera, Devapriya (2015) Hydraulic Flow through Engineering Bentonite-Based Containment Barriers. American Journal of Applied Sciences, 12 (11). pp. 785-793. ISSN 1554-3641 http://thescipub.com/journals/ajas 10.3844/ajassp.2015.785.793 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Loh, Eric Wooi Kee Chitral Wijeyesekera, Devapriya Hydraulic Flow through Engineering Bentonite-Based Containment Barriers |
| title | Hydraulic Flow through Engineering Bentonite-Based
Containment Barriers |
| title_full | Hydraulic Flow through Engineering Bentonite-Based
Containment Barriers |
| title_fullStr | Hydraulic Flow through Engineering Bentonite-Based
Containment Barriers |
| title_full_unstemmed | Hydraulic Flow through Engineering Bentonite-Based
Containment Barriers |
| title_short | Hydraulic Flow through Engineering Bentonite-Based
Containment Barriers |
| title_sort | hydraulic flow through engineering bentonite-based
containment barriers |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://eprints.intimal.edu.my/228/ http://eprints.intimal.edu.my/228/ http://eprints.intimal.edu.my/228/ http://eprints.intimal.edu.my/228/1/Hydraulic%20Flow%20through%20Engineering%20BentoniteBased.pdf |