Investigation of Light Non-Aqueous Phase Liquid Migration Single and Double-Porosity Soil Using Light Transmission Visualization Method (LTV)

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Alazaiza, M. Y. D. and Ngien, S. K. and Bob, M. M. and Kamaruddin, S. A. and Wan Faizal, Wan Ishak (2016) Investigation of Light Non-Aqueous Phase Liquid Migration Single and Double-Porosity Soil Using Light Transmission Visualization Method (LTV). In: MATEC Web of Conferences: The 3rd International Conference on Civil and Environmental Engineering for Sustainability (IConCEES 2015), 1-2 December 2015 , Melaka, Malaysia. pp. 1-6., 47 (03023). ISSN 2261-236X

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Official URL: http://dx.doi.org/10.1051/matecconf/20164703023

Abstract

Two experiments were conducted to investigate the migration of light non-aqueous phase liquid (LNAPL) in two different porous media using LTV technique. The first media was fine sand as a single-porosity and the second media was S300 kaolin as a double-porosity. The two media were packed separately in the flow chamber and then LNAPL was injected from the top of the model and the migration of LNAPL (Toluene) 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 by the software. The results show a significant difference in the migration of LNAPL in the two porous media, where the migration in the double-porosity media was much faster than the migration in the single-porosity. This finding is due to the occurrence of inter-aggregate pores in the double-porosity soil structure. This paper shows that more attention should be given towards the pollution of the groundwater sources that are located within or near the double-porosity media especially the agricultural soil.

Item Type:Conference or Workshop Item (Lecture)
Uncontrolled Keywords:light non-aqueous phase liquid (LNAPL); Light Transmission Visualization Method (LTV)
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Centre for Earth Resources Research & Management
Faculty of Civil Engineering & Earth Resources
ID Code:15437
Deposited By: Dr Su Kong Ngien
Deposited On:29 Nov 2016 15:33
Last Modified:16 Aug 2017 16:29

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