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

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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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)
Faculty/Division: Centre of Excellence: Centre for Earth Resources Research & Management
Faculty of Civil Engineering & Earth Resources
Depositing User: Dr Su Kong Ngien
Date Deposited: 29 Nov 2016 07:33
Last Modified: 16 Aug 2017 08:29
URI: http://umpir.ump.edu.my/id/eprint/15437
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