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Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis

Physical model experiments were conducted to observe the migration of light non-aqueous phase liquids (LNAPL) in a double-porosity soil medium. The double-porosity characteristics of the soil were simulated through aggregation of kaolin which resulted in well-defined intra-aggregate and inter-aggreg...

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Main Authors:	Su, Kong Ngien, Abd. Rahman, Norhan, M. Bob, Mustafa, Ahmad, Kamarudin, Sa’ari, Radzuan, Lewis, Roland W.
Format:	Article
Published:	Springer Science+Business Media B.V. SciVal Topic Prominence 2012
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/47292/ http://dx.doi.org/10.1007/s11242-011-9892-9
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id	my.utm.47292
record_format	eprints
spelling	my.utm.472922019-03-05T01:59:13Z http://eprints.utm.my/id/eprint/47292/ Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis Su, Kong Ngien Abd. Rahman, Norhan M. Bob, Mustafa Ahmad, Kamarudin Sa’ari, Radzuan Lewis, Roland W. TA Engineering (General). Civil engineering (General) Physical model experiments were conducted to observe the migration of light non-aqueous phase liquids (LNAPL) in a double-porosity soil medium. The double-porosity characteristics of the soil were simulated through aggregation of kaolin which resulted in well-defined intra-aggregate and inter-aggregate pores. Digital images were collected to monitor LNAPL (modeled by toluene) migration. A special experimental setup was developed to enable the instantaneous capture of the LNAPL migration around the whole soil column using a single digital camera. An image processing module was applied to the captured images and the results plotted using a surface mapping programme. Events observed during the duration of the experiments were discussed. It was found that the LNAPL flowed much faster in the aggregated soil as compared to a single-porosity soil. The wettability of the fluid and the capillary pressure characteristics were demonstrated to be influential factors in immiscible fluids migration when the soil fabric showed highly contrasting porosity values. Springer Science+Business Media B.V. SciVal Topic Prominence 2012-03 Article PeerReviewed Su, Kong Ngien and Abd. Rahman, Norhan and M. Bob, Mustafa and Ahmad, Kamarudin and Sa’ari, Radzuan and Lewis, Roland W. (2012) Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis. Transport In Porous Media, 92 (1). pp. 83-100. ISSN 0169-3913 http://dx.doi.org/10.1007/s11242-011-9892-9 DOI:10.1007/s11242-011-9892-9
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Su, Kong Ngien Abd. Rahman, Norhan M. Bob, Mustafa Ahmad, Kamarudin Sa’ari, Radzuan Lewis, Roland W. Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
description	Physical model experiments were conducted to observe the migration of light non-aqueous phase liquids (LNAPL) in a double-porosity soil medium. The double-porosity characteristics of the soil were simulated through aggregation of kaolin which resulted in well-defined intra-aggregate and inter-aggregate pores. Digital images were collected to monitor LNAPL (modeled by toluene) migration. A special experimental setup was developed to enable the instantaneous capture of the LNAPL migration around the whole soil column using a single digital camera. An image processing module was applied to the captured images and the results plotted using a surface mapping programme. Events observed during the duration of the experiments were discussed. It was found that the LNAPL flowed much faster in the aggregated soil as compared to a single-porosity soil. The wettability of the fluid and the capillary pressure characteristics were demonstrated to be influential factors in immiscible fluids migration when the soil fabric showed highly contrasting porosity values.
format	Article
author	Su, Kong Ngien Abd. Rahman, Norhan M. Bob, Mustafa Ahmad, Kamarudin Sa’ari, Radzuan Lewis, Roland W.
author_facet	Su, Kong Ngien Abd. Rahman, Norhan M. Bob, Mustafa Ahmad, Kamarudin Sa’ari, Radzuan Lewis, Roland W.
author_sort	Su, Kong Ngien
title	Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
title_short	Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
title_full	Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
title_fullStr	Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
title_full_unstemmed	Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
title_sort	observation of light non-aqueous phase liquid migration in aggregated soil using image analysis
publisher	Springer Science+Business Media B.V. SciVal Topic Prominence
publishDate	2012
url	http://eprints.utm.my/id/eprint/47292/ http://dx.doi.org/10.1007/s11242-011-9892-9
_version_	1643652279635542016
score	13.211869

Observation of light non-aqueous phase liquid migration in aggregated soil using image analysis

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