Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites

Garis panduan tafsiran untuk analisis model songsangan yang dihasilkan bagi keberintangan elektrik dan kebolehcas di dua tapak pelupusan semi-aerobik yang dinaik taraf telah dibangunkan. Model songsangan yang dihasilkan daripada program songsangan 2D (RES2DINV) telah digunakan untuk menetapkan grid-...

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Main Author:	Abdulrahman, Abdullahi
Format:	Thesis
Language:	English
Published:	2016
Subjects:	QC1 Physics (General)
Online Access:	http://eprints.usm.my/32079/1/ABDULLAHI_ABDULRAHMAN_24%28NN%29.pdf
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id	my-usm-ep.32079
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spelling	my-usm-ep.320792019-04-12T05:25:15Z Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites 2016-08 Abdulrahman, Abdullahi QC1 Physics (General) Garis panduan tafsiran untuk analisis model songsangan yang dihasilkan bagi keberintangan elektrik dan kebolehcas di dua tapak pelupusan semi-aerobik yang dinaik taraf telah dibangunkan. Model songsangan yang dihasilkan daripada program songsangan 2D (RES2DINV) telah digunakan untuk menetapkan grid-grid pengimejan keberintangan dan kebolehcas di tapak pelupusan. Kajian mengesahkan bahawa keberintangan rendah (<10 Ωm) menunjukkan kepulan air larut lesap manakala unit kebolehcas tinggi (>70 ms) mewakili deposit sisa dan lapisan tanah liat tepu. Tambahan pula, sambutan IP pada kepulan air larut lesap hiliran yang disebarkan daripada tapak pelupusan separa aerobik yang berasingan telah dinilai. Penilaian juga meneliti status bahan cemar dan mengklasifikasikan strata di bawah tapak pelupusan perbandaran sisa pepejal. Hasil kajian menunjukkan kepulan yang didominasi oleh ion memaparkan zon kebolehcas yang lemah (<20 ms) dan menyokong polarisasi ionik berbanding polarisasi elektronik sebagai sambutan IP. An interpretation template for the analysis of electrical resistivity and chargeability inverse models produced at two upgraded semi-aerobic landfill sites was developed. The inverse models generated from a 2D inversion program (RES2DINV) were used to set up grids of resistivity and chargeability imaging at the landfill sites. The study confirmed a low resistivity (<10 Ωm) depicting leachate plume while a high chargeability unit (>70 ms) represents waste deposits and saturated clayey layers. Furthermore, the IP responses of the disseminated leachate plume downstream of a separate landfill site were assessed. The appraisal also examines the contaminant status and classified the strata beneath municipal solid waste landfills. The outcome of the investigation showed that the ion-dominated plume displays a weak chargeability zone (<20 ms) and supports ionic polarization rather than electronic polarization in its IP responses. 2016-08 Thesis http://eprints.usm.my/32079/ http://eprints.usm.my/32079/1/ABDULLAHI_ABDULRAHMAN_24%28NN%29.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Sains Fizik (School of Physics)
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QC1 Physics (General)
spellingShingle	QC1 Physics (General) Abdulrahman, Abdullahi Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
description	Garis panduan tafsiran untuk analisis model songsangan yang dihasilkan bagi keberintangan elektrik dan kebolehcas di dua tapak pelupusan semi-aerobik yang dinaik taraf telah dibangunkan. Model songsangan yang dihasilkan daripada program songsangan 2D (RES2DINV) telah digunakan untuk menetapkan grid-grid pengimejan keberintangan dan kebolehcas di tapak pelupusan. Kajian mengesahkan bahawa keberintangan rendah (<10 Ωm) menunjukkan kepulan air larut lesap manakala unit kebolehcas tinggi (>70 ms) mewakili deposit sisa dan lapisan tanah liat tepu. Tambahan pula, sambutan IP pada kepulan air larut lesap hiliran yang disebarkan daripada tapak pelupusan separa aerobik yang berasingan telah dinilai. Penilaian juga meneliti status bahan cemar dan mengklasifikasikan strata di bawah tapak pelupusan perbandaran sisa pepejal. Hasil kajian menunjukkan kepulan yang didominasi oleh ion memaparkan zon kebolehcas yang lemah (<20 ms) dan menyokong polarisasi ionik berbanding polarisasi elektronik sebagai sambutan IP. An interpretation template for the analysis of electrical resistivity and chargeability inverse models produced at two upgraded semi-aerobic landfill sites was developed. The inverse models generated from a 2D inversion program (RES2DINV) were used to set up grids of resistivity and chargeability imaging at the landfill sites. The study confirmed a low resistivity (<10 Ωm) depicting leachate plume while a high chargeability unit (>70 ms) represents waste deposits and saturated clayey layers. Furthermore, the IP responses of the disseminated leachate plume downstream of a separate landfill site were assessed. The appraisal also examines the contaminant status and classified the strata beneath municipal solid waste landfills. The outcome of the investigation showed that the ion-dominated plume displays a weak chargeability zone (<20 ms) and supports ionic polarization rather than electronic polarization in its IP responses.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Abdulrahman, Abdullahi
author_facet	Abdulrahman, Abdullahi
author_sort	Abdulrahman, Abdullahi
title	Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
title_short	Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
title_full	Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
title_fullStr	Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
title_full_unstemmed	Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites
title_sort	geoelectrical techniques for subsurface characterization and contaminant plume images at landfill sites
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Fizik (School of Physics)
publishDate	2016
url	http://eprints.usm.my/32079/1/ABDULLAHI_ABDULRAHMAN_24%28NN%29.pdf
_version_	1747820523051548672

Geoelectrical Techniques For Subsurface Characterization And Contaminant Plume Images At Landfill Sites

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