Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin

Riverbank filtration (RBF) is a process where the river water is induced to flow through the riverbed soil to pumping wells located at the banks. This system has shown in recent years to be very effective at controlling plenty of contaminants, microorganisms, and also reducing concentrations of tota...

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Main Author:	Baharudin, Fauzi
Format:	Thesis
Language:	English
Published:	2022
Subjects:	Soil mechanics Including properties of soils, water in soil, strength properties, consolidation, etc.
Online Access:	https://ir.uitm.edu.my/id/eprint/76119/1/76119.pdf
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id	my-uitm-ir.76119
record_format	uketd_dc
spelling	my-uitm-ir.761192023-05-10T08:13:58Z Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin 2022 Baharudin, Fauzi Soil mechanics. Including properties of soils, water in soil, strength properties, consolidation, etc. Water purification. Water treatment and conditioning. Saline water conversion Riverbank filtration (RBF) is a process where the river water is induced to flow through the riverbed soil to pumping wells located at the banks. This system has shown in recent years to be very effective at controlling plenty of contaminants, microorganisms, and also reducing concentrations of total and dissolved organic carbon. However, due to long and continuous pumping, the efficiency might decrease because of soil clogging. This decreased can be quantified and reflected as the change of hydraulic conductivity (K) values at the pumping site. This study aims to assess the variability of soil hydraulic conductivity at groundwater pumping site and also to study the effectiveness of vibration method to improve the hydraulic conductivity. The study was carried out by measuring the K values using slug test method at three pumping wells, namely MW01, MW02 and MW03 with several durations of vibration ranging from 30 minutes to 240 minutes. The result shows that average values of hydraulic conductivity of the soil were found to have increased for all wells. The trend of K changes increased with longer duration of vibration indicated improvement of the hydraulic conductivity. The shortest duration of vibration which is 30 minutes was able to improve K values within the range of 7.2% to 9.0%. The longest duration of vibration which is 240 minutes was able to get K improvement from 27.2% to 37.7%. The prediction models of hydraulic conductivity (K) improvement were developed using three training algorithms which were Scaled Conjugate Gradient (SCG), Bayesian regularization (BR) and Levenberg-Marquardt (LM). The results have shown that the model developed with Scaled Conjugate Gradient (SCG) algorithm provided the best prediction with values for mean squared error (MSE) of 58.59 and R of 0.86. Thus, it has been proven that the vibration can be an effective method and this model can be used for future study on improvement of hydraulic conductivity of the soil. 2022 Thesis https://ir.uitm.edu.my/id/eprint/76119/ https://ir.uitm.edu.my/id/eprint/76119/1/76119.pdf text en public phd doctoral Universiti Teknologi MARA (UiTM) College of Engineering Jani, Janmaizatulriah
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Jani, Janmaizatulriah
topic	Soil mechanics Including properties of soils, water in soil, strength properties, consolidation, etc. Soil mechanics Including properties of soils, water in soil, strength properties, consolidation, etc.
spellingShingle	Soil mechanics Including properties of soils, water in soil, strength properties, consolidation, etc. Soil mechanics Including properties of soils, water in soil, strength properties, consolidation, etc. Baharudin, Fauzi Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
description	Riverbank filtration (RBF) is a process where the river water is induced to flow through the riverbed soil to pumping wells located at the banks. This system has shown in recent years to be very effective at controlling plenty of contaminants, microorganisms, and also reducing concentrations of total and dissolved organic carbon. However, due to long and continuous pumping, the efficiency might decrease because of soil clogging. This decreased can be quantified and reflected as the change of hydraulic conductivity (K) values at the pumping site. This study aims to assess the variability of soil hydraulic conductivity at groundwater pumping site and also to study the effectiveness of vibration method to improve the hydraulic conductivity. The study was carried out by measuring the K values using slug test method at three pumping wells, namely MW01, MW02 and MW03 with several durations of vibration ranging from 30 minutes to 240 minutes. The result shows that average values of hydraulic conductivity of the soil were found to have increased for all wells. The trend of K changes increased with longer duration of vibration indicated improvement of the hydraulic conductivity. The shortest duration of vibration which is 30 minutes was able to improve K values within the range of 7.2% to 9.0%. The longest duration of vibration which is 240 minutes was able to get K improvement from 27.2% to 37.7%. The prediction models of hydraulic conductivity (K) improvement were developed using three training algorithms which were Scaled Conjugate Gradient (SCG), Bayesian regularization (BR) and Levenberg-Marquardt (LM). The results have shown that the model developed with Scaled Conjugate Gradient (SCG) algorithm provided the best prediction with values for mean squared error (MSE) of 58.59 and R of 0.86. Thus, it has been proven that the vibration can be an effective method and this model can be used for future study on improvement of hydraulic conductivity of the soil.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Baharudin, Fauzi
author_facet	Baharudin, Fauzi
author_sort	Baharudin, Fauzi
title	Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
title_short	Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
title_full	Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
title_fullStr	Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
title_full_unstemmed	Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin
title_sort	effect of vibration on hydraulic conductivity of riverbank filtration site / fauzi baharudin
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	College of Engineering
publishDate	2022
url	https://ir.uitm.edu.my/id/eprint/76119/1/76119.pdf
_version_	1783736102249562112

Effect of vibration on hydraulic conductivity of riverbank filtration site / Fauzi Baharudin

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