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., Samira, A. Kamaruddin
Other Authors: Zawawi, Noor Amila Wan Abdullah
Format: Conference or Workshop Item
Language:English
Published: CRC Press 2016
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/15439/
http://umpir.ump.edu.my/id/eprint/15439/
http://umpir.ump.edu.my/id/eprint/15439/1/fkasa-2016-ngien-Investigation%20of%20the%20influence%20of%20particle%20size1.pdf
id ump-15439
recordtype eprints
spelling ump-154392017-08-16T08:30:31Z http://umpir.ump.edu.my/id/eprint/15439/ 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. Samira, A. Kamaruddin TA Engineering (General). Civil engineering (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 sands were 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 Zawawi, Noor Amila Wan Abdullah 2016 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/15439/1/fkasa-2016-ngien-Investigation%20of%20the%20influence%20of%20particle%20size1.pdf Alazaiza, M. Y. D. and Ngien, S. K. and Bob, M. M. and Samira, A. Kamaruddin (2016) Investigation of the Influence of Particle Size on the Migration of DNAPL in Unsaturated Sand. In: Proceedings of the 3rd International Conference on Civil, Offshore and Environmental Engineering (ICCOEE 2016), 15-17 August 2016 , Kuala Lumpur, Malaysia. pp. 289-292.. ISBN 978-1-138-02978-1 http://dx.doi.org/10.1201/b21942-57
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Samira, A. Kamaruddin
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 sands were 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.
author2 Zawawi, Noor Amila Wan Abdullah
author_facet Zawawi, Noor Amila Wan Abdullah
Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Samira, A. Kamaruddin
format Conference or Workshop Item
author Alazaiza, M. Y. D.
Ngien, S. K.
Bob, M. M.
Samira, A. Kamaruddin
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
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/15439/
http://umpir.ump.edu.my/id/eprint/15439/
http://umpir.ump.edu.my/id/eprint/15439/1/fkasa-2016-ngien-Investigation%20of%20the%20influence%20of%20particle%20size1.pdf
first_indexed 2023-09-18T22:20:06Z
last_indexed 2023-09-18T22:20:06Z
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