Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)

Soil that is contaminated with heavy metals has become a major issue worldwide. However, proper remediation techniques such as stabilisation/solidification (S/S) method can be employed and is capable of controlling these heavy metals. Conventionally, the common S/S method used cement as binder on...

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Main Author:	Mohammad Azmi, Mohamad Azim
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TD1020-1066 Hazardous substances and their disposal
Online Access:	http://eprints.uthm.edu.my/207/1/24p%20MOHAMAD%20AZIM%20MOHAMMAD%20AZMI.pdf http://eprints.uthm.edu.my/207/2/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/207/3/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20%20WATERMARK.pdf
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spelling	my-uthm-ep.2072021-07-06T08:24:58Z Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA) 2018-11 Mohammad Azmi, Mohamad Azim TD1020-1066 Hazardous substances and their disposal Soil that is contaminated with heavy metals has become a major issue worldwide. However, proper remediation techniques such as stabilisation/solidification (S/S) method can be employed and is capable of controlling these heavy metals. Conventionally, the common S/S method used cement as binder on remediating the contaminated soil particularly heavy metals. This research is to investigate the effect of physical and leachability of contaminated soil in S/S method when Sugarcane Bagasse Ash (SCBA) is added to remedy contaminated soil. Landfill contaminated soil was used to test the effectiveness of those binder. Cement was added at a proportion of 5%, 10%, 15% and 20% in sample weights without SCBA while in another sample; the cement was replaced by SCBA at a proportion of 2.5%, 5%, 7.5% and 10%. All samples are to be allowed to harden and cured at room temperature for 7, 14 and 28 days. The effectiveness of the treatment was assessing by conducting physical testing such as Unconfined Compression Strength, Water Absorption and Permeability test. In addition, leaching tests were performed to identify the leachate behavior of heavy metals during treatment. Three leaching tests were conducted and they were the Toxicity Characteristic Leaching Procedure (TCLP), Synthetic Precipitation Leaching Procedure (SPLP) and Dynamic Leaching Test (DLT). Through the physical testing, samples containing 10% OPC mixed with 10% SCBA were found to improve the compressive strength, reduced the water absorption and water permeability measuring 1550 MPa, 17.94% and 4.41 x 10 -10 m/s respectively. In the same way, through the statistical analysis, the R-squared for UCS with respect to mixed design is high at 98%. However, the value for both water absorption and permeability recorded to be marginally low, compared to the value for strength at 89% and 88% respectively. Through the TCLP and SPLP test, results indicated that when SCBA added to OPC content in soil samples, less heavy metal been leached out from the S/S sample. In average, the satisfying result was shown by samples containing 10% OPC + 10% SCBA where reduction of heavy metals in final leachate is more than 90% for As, Cd, Cr, Pb and Zn. Through the Dynamic Leaching Test, sample containing 10% OPC +10% SCBA showed the satisfactory leachability index (Lx) at 9.17, 9.17, 8.81, 8.17 and 6.97 for As, Cd, Cr, Pb and Zn respectively. This indicates that the use of cement and SCBA as a binder was successful in remediating the contaminated soils through the S/S method. 2018-11 Thesis http://eprints.uthm.edu.my/207/ http://eprints.uthm.edu.my/207/1/24p%20MOHAMAD%20AZIM%20MOHAMMAD%20AZMI.pdf text en public http://eprints.uthm.edu.my/207/2/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/207/3/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Awam dan Alam Bina
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TD1020-1066 Hazardous substances and their disposal
spellingShingle	TD1020-1066 Hazardous substances and their disposal Mohammad Azmi, Mohamad Azim Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
description	Soil that is contaminated with heavy metals has become a major issue worldwide. However, proper remediation techniques such as stabilisation/solidification (S/S) method can be employed and is capable of controlling these heavy metals. Conventionally, the common S/S method used cement as binder on remediating the contaminated soil particularly heavy metals. This research is to investigate the effect of physical and leachability of contaminated soil in S/S method when Sugarcane Bagasse Ash (SCBA) is added to remedy contaminated soil. Landfill contaminated soil was used to test the effectiveness of those binder. Cement was added at a proportion of 5%, 10%, 15% and 20% in sample weights without SCBA while in another sample; the cement was replaced by SCBA at a proportion of 2.5%, 5%, 7.5% and 10%. All samples are to be allowed to harden and cured at room temperature for 7, 14 and 28 days. The effectiveness of the treatment was assessing by conducting physical testing such as Unconfined Compression Strength, Water Absorption and Permeability test. In addition, leaching tests were performed to identify the leachate behavior of heavy metals during treatment. Three leaching tests were conducted and they were the Toxicity Characteristic Leaching Procedure (TCLP), Synthetic Precipitation Leaching Procedure (SPLP) and Dynamic Leaching Test (DLT). Through the physical testing, samples containing 10% OPC mixed with 10% SCBA were found to improve the compressive strength, reduced the water absorption and water permeability measuring 1550 MPa, 17.94% and 4.41 x 10 -10 m/s respectively. In the same way, through the statistical analysis, the R-squared for UCS with respect to mixed design is high at 98%. However, the value for both water absorption and permeability recorded to be marginally low, compared to the value for strength at 89% and 88% respectively. Through the TCLP and SPLP test, results indicated that when SCBA added to OPC content in soil samples, less heavy metal been leached out from the S/S sample. In average, the satisfying result was shown by samples containing 10% OPC + 10% SCBA where reduction of heavy metals in final leachate is more than 90% for As, Cd, Cr, Pb and Zn. Through the Dynamic Leaching Test, sample containing 10% OPC +10% SCBA showed the satisfactory leachability index (Lx) at 9.17, 9.17, 8.81, 8.17 and 6.97 for As, Cd, Cr, Pb and Zn respectively. This indicates that the use of cement and SCBA as a binder was successful in remediating the contaminated soils through the S/S method.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Mohammad Azmi, Mohamad Azim
author_facet	Mohammad Azmi, Mohamad Azim
author_sort	Mohammad Azmi, Mohamad Azim
title	Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
title_short	Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
title_full	Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
title_fullStr	Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
title_full_unstemmed	Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)
title_sort	stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (scba)
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Awam dan Alam Bina
publishDate	2018
url	http://eprints.uthm.edu.my/207/1/24p%20MOHAMAD%20AZIM%20MOHAMMAD%20AZMI.pdf http://eprints.uthm.edu.my/207/2/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/207/3/MOHAMAD%20AZIM%20MOHAMMAD%20AZMI%20%20WATERMARK.pdf
_version_	1747830554013728768

Stabilisation and solidification of contaminated soil using cement and sugarcane bagasse ash (SCBA)

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