000			03252ntm a2200277 a 4500
001			vtls000102744
003			KUKTEM
005			20251117113349.0
008			180112t2017 my a f a m 000 0 eng d
020			_aTHE0000693(Local)
039		9	_a201905161616 _bnazirah _y201801121136 _zfateeha
040			_aUMP
090			_aFKASA .S56 2017 r Bc.
100	1		_aSim, Mei Chee
245	1	0	_aImage analysis on migration of non aqueous phase liquid in combined single and double porosity media / _cSim Mei Chee
260			_aKuantan, Pahang : _bUMP, _c2017
300			_axi, 55 p. : _bill. (some col.) ; _c30 cm. + _c1 CD ROM
500			_aFaculty of Civil Engineering and Earth Resources
502			_aProject Paper (Bachelors of Civil Engineering) -- Universiti Malaysia Pahang – 2017
504			_aBibliography : p. 51-54
520	3		_aTransportation, storage as well as management of environmentally hazardous fluid compounds are essential for chemical and petroleum industries. Many of these compounds form a different fluid phase when in contact with water due to their extremely low solubility in water. They are known as non-aqueous phase liquids (NAPLs). NAPLs can get into contact with the environment due to accidental spills during transportation processes or as a result of leakage in pipes or underground tanks. Generally, there are two types of NAPLs that can bring contamination to the subsurface environments and they are light non-aqueous phase liquids (LNAPLs) and dense non-aqueous phase liquids (DNAPLs). Therefore, it is important to study the migration of NAPLs in the soil. The main purpose of this research is to study the flow pattern of NAPLs and investigate the difference in LNAPL and DNAPL flow characteristics in combined single and double porosity layered soil. Toluene was used as the LNAPL whereas trichloroethylene represented the DNAPL. Single porosity soil was represented by 0.15mm sized sand whereas aggregated kaolin was used as the double porosity media. Two layers of sand and two layers of aggregated kaolin were placed alternately with sand as the bottom layer. NAPL was then poured into the acrylic model with the media prepared earlier and then DSLR camera was used to capture the images and finally Image-Pro software used for image analysis. The migration of both NAPLs was analyzed through the images captured based on data processing using the Image-Pro software. In conclusion, the migration of NAPLs is much faster in double porosity aggregated kaolin compared to the migration of NAPLs in single porosity sand. It is also concluded that toluene, which is the LNAPL used in this research, will take a longer time to be fully spread throughout the media as compared to the DNAPL trichloroethylene used in this research. The higher density of DNAPL will cause the gravitational force to become bigger to pull the NAPL droplets downwards. Trichloroethylene is able to migrate deeper as it is denser than water as compared to toluene.
610	2	0	_aFaculty of Civil Engineering and Earth Resources _xDissertations
650		0	_aUniversities and Colleges _xDissertations
650		0	_aTheses
999			_aVIRTUA40 _c7399 _d7405
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5000*5020*5040*5200*6100*6500*6501*9992