Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri

The most crucial parameter to be investigated for environmental engineering survey was the dielectric permittivity of the sub-surface material by using Ground Penetrating Radar (GPR). A limitation occurred on the GPR result when Light Non-Aqueous Phase Liquid (LNAPL) posed into the soil that commonl...

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Main Author:	Kasmuri, Zulfadhli
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Geomatics Environmental conditions. Environmental quality. Environmental indicators QE Geology
Online Access:	http://ir.uitm.edu.my/id/eprint/20973/ http://ir.uitm.edu.my/id/eprint/20973/1/TD_ZULFADHLI%20KASMURI%20AP_R%2018_5.pdf

id	uitm-20973
recordtype	eprints
spelling	uitm-209732018-08-15T01:16:52Z http://ir.uitm.edu.my/id/eprint/20973/ Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri Kasmuri, Zulfadhli Geomatics Environmental conditions. Environmental quality. Environmental indicators QE Geology The most crucial parameter to be investigated for environmental engineering survey was the dielectric permittivity of the sub-surface material by using Ground Penetrating Radar (GPR). A limitation occurred on the GPR result when Light Non-Aqueous Phase Liquid (LNAPL) posed into the soil that commonly analysed by dielectric permittivity. Other factors that affected soil contamination parameter were temperature and moisture content which caused the dielectric permittivity diversity in time propagation. This research motivated the contaminated soil investigation with a focus on the temporal dielectric permittivity variation due to the presence of LNAPL. GPR method was used to gain the dielectric permittivity variation with aid of analysis regarding the time-based of LNAPL presence that interacted relatively with the soil moisture and temperature. Diesel filled to contaminate the dry sandy site. GPR measurement carried out by using 800MHz frequency while the temperature and soil moisture reading recorded during scanning. Dielectric permittivity of LNAPL zone retrieved based on dielectric contrast in radargram, GPR signal amplitude, time travel, and electromagnetic wave velocity. Uncontaminated soil permittivity was 9.591 among 13.5% of moisture and 27 ̊c temperature recorded. Highest dielectric permittivity value identified was 17.674 at the higher moisture percentage and temperature in the last observation. LNAPL caused a high loss of electromagnetic wave scattering, but sometimes increased the radar signal amplitude, and lead the dielectric permittivity to its higher value for larger increment of soil moisture at the saturated sand. By using the average of absolute percentage error, found that the difference between actual and calculated depth of pipe were 0.038% error in average. Root Mean Square (RMS) in velocity analysis resulted 0.045 m/ns correction for a succession of velocity. Normalised Root Mean Square Error (NRMSE) produced 0.089 of similarity between the de-noised and raw GPR data. This research attributed analysis uses for the subsurface engineering and comes about reliable with discoveries from geophysical study that conceivable to recognize contaminant. 2018-08-02 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/20973/1/TD_ZULFADHLI%20KASMURI%20AP_R%2018_5.pdf Kasmuri, Zulfadhli (2018) Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri. Degree thesis, Universiti Teknologi Mara Perlis.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Geomatics Environmental conditions. Environmental quality. Environmental indicators QE Geology
spellingShingle	Geomatics Environmental conditions. Environmental quality. Environmental indicators QE Geology Kasmuri, Zulfadhli Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
description	The most crucial parameter to be investigated for environmental engineering survey was the dielectric permittivity of the sub-surface material by using Ground Penetrating Radar (GPR). A limitation occurred on the GPR result when Light Non-Aqueous Phase Liquid (LNAPL) posed into the soil that commonly analysed by dielectric permittivity. Other factors that affected soil contamination parameter were temperature and moisture content which caused the dielectric permittivity diversity in time propagation. This research motivated the contaminated soil investigation with a focus on the temporal dielectric permittivity variation due to the presence of LNAPL. GPR method was used to gain the dielectric permittivity variation with aid of analysis regarding the time-based of LNAPL presence that interacted relatively with the soil moisture and temperature. Diesel filled to contaminate the dry sandy site. GPR measurement carried out by using 800MHz frequency while the temperature and soil moisture reading recorded during scanning. Dielectric permittivity of LNAPL zone retrieved based on dielectric contrast in radargram, GPR signal amplitude, time travel, and electromagnetic wave velocity. Uncontaminated soil permittivity was 9.591 among 13.5% of moisture and 27 ̊c temperature recorded. Highest dielectric permittivity value identified was 17.674 at the higher moisture percentage and temperature in the last observation. LNAPL caused a high loss of electromagnetic wave scattering, but sometimes increased the radar signal amplitude, and lead the dielectric permittivity to its higher value for larger increment of soil moisture at the saturated sand. By using the average of absolute percentage error, found that the difference between actual and calculated depth of pipe were 0.038% error in average. Root Mean Square (RMS) in velocity analysis resulted 0.045 m/ns correction for a succession of velocity. Normalised Root Mean Square Error (NRMSE) produced 0.089 of similarity between the de-noised and raw GPR data. This research attributed analysis uses for the subsurface engineering and comes about reliable with discoveries from geophysical study that conceivable to recognize contaminant.
format	Thesis
author	Kasmuri, Zulfadhli
author_facet	Kasmuri, Zulfadhli
author_sort	Kasmuri, Zulfadhli
title	Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
title_short	Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
title_full	Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
title_fullStr	Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
title_full_unstemmed	Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri
title_sort	investigation of dielectric permittivity diversity against soil contamination by [gpr] due to [lnapl] / zulfadhli kasmuri
publishDate	2018
url	http://ir.uitm.edu.my/id/eprint/20973/ http://ir.uitm.edu.my/id/eprint/20973/1/TD_ZULFADHLI%20KASMURI%20AP_R%2018_5.pdf
first_indexed	2023-09-18T23:05:36Z
last_indexed	2023-09-18T23:05:36Z
_version_	1777418461656383488

Investigation of dielectric permittivity diversity against soil contamination by [GPR] due to [LNAPL] / Zulfadhli Kasmuri

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