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Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand

Four experimentswere conducted to investigate the migration of dense non-aqueous phase liquid (DNAPL) in unsaturated porous media using Light Reflection Method (LRM). The porous media was natural sand collected from a river and segregated into different sizes through sieving. Three different sizes o...

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Main Authors: Alazaiza, M. Y. D., Ngien, S. K., Bob, M. M., Kamaruddin, S. A.
Format: Conference or Workshop Item
Published: CRC Press/Balkema 2016
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/73662/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009736273&partnerID=40&md5=a56a37facd211028197d8522a4837c74
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spelling my.utm.736622017-11-28T07:42:35Z http://eprints.utm.my/id/eprint/73662/ Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand Alazaiza, M. Y. D. Ngien, S. K. Bob, M. M. Kamaruddin, S. A. T Technology (General) Four experimentswere conducted to investigate the migration of dense non-aqueous phase liquid (DNAPL) in unsaturated porous media using Light Reflection Method (LRM). The porous media was natural sand collected from a river and segregated into different sizes through sieving. Three different sizes of the sand were used in the first three experimentswhile the fourth experiment used a mixture of these sands.The sandswere packed separately in rectangular acrylic columns and then DNAPL was injected from the top of the column. The migration of DNAPL, modeled by tetrachloroethylene (PCE), was observed using a digital camera connected to a laptop and controlled using special software. The images were captured according to a predetermined time interval set into the software. The results show a significant difference in the migration of PCE through these sands. The migration of PCE in Experiment 3 was much faster than the migration in the other experiments. This is most likely due to the large pores in the sand samples. Moreover, in the experiment using mixture sand, it was observed that the migration was uneven and relatively slower than other experiments. LRM provides a non-intrusive and non-destructive tool for studying fluid flow for which rapid changes in fluid flow in the entire flow domain is difficult to measure using conventional techniques. CRC Press/Balkema 2016 Conference or Workshop Item PeerReviewed Alazaiza, M. Y. D. and Ngien, S. K. and Bob, M. M. and Kamaruddin, S. A. (2016) Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand. In: 3rd International Conference on Civil, offshore and Environmental Engineering, ICCOEE 2016, 15-17 Aug 2016, Kuala Lumpur, Malaysia. https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009736273&partnerID=40&md5=a56a37facd211028197d8522a4837c74
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 T Technology (General)
spellingShingle T Technology (General)
Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Kamaruddin, S. A.
Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
description Four experimentswere conducted to investigate the migration of dense non-aqueous phase liquid (DNAPL) in unsaturated porous media using Light Reflection Method (LRM). The porous media was natural sand collected from a river and segregated into different sizes through sieving. Three different sizes of the sand were used in the first three experimentswhile the fourth experiment used a mixture of these sands.The sandswere packed separately in rectangular acrylic columns and then DNAPL was injected from the top of the column. The migration of DNAPL, modeled by tetrachloroethylene (PCE), was observed using a digital camera connected to a laptop and controlled using special software. The images were captured according to a predetermined time interval set into the software. The results show a significant difference in the migration of PCE through these sands. The migration of PCE in Experiment 3 was much faster than the migration in the other experiments. This is most likely due to the large pores in the sand samples. Moreover, in the experiment using mixture sand, it was observed that the migration was uneven and relatively slower than other experiments. LRM provides a non-intrusive and non-destructive tool for studying fluid flow for which rapid changes in fluid flow in the entire flow domain is difficult to measure using conventional techniques.
format Conference or Workshop Item
author Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Kamaruddin, S. A.
author_facet Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Kamaruddin, S. A.
author_sort Alazaiza, M. Y. D.
title Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
title_short Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
title_full Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
title_fullStr Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
title_full_unstemmed Investigation of the influence of particle size on the migration of DNAPL in unsaturated sand
title_sort investigation of the influence of particle size on the migration of dnapl in unsaturated sand
publisher CRC Press/Balkema
publishDate 2016
url http://eprints.utm.my/id/eprint/73662/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85009736273&partnerID=40&md5=a56a37facd211028197d8522a4837c74
_version_ 1643656714195566592
score 13.211869

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