Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya

Solid waste disposal becomes an increasingly serious problem due to rapid growth in industrial sector. Most of the industrial solid wastes are classified as scheduled waste, which are highly contaminated with heavy metals and toxic compounds. Scheduled waste must be disposed according to the procedu...

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Main Author:	Kerya, Zuraini
Format:	Thesis
Language:	English
Published:	2010
Subjects:	Environmental protection Municipal refuse. Solid wastes
Online Access:	http://ir.uitm.edu.my/id/eprint/27720/ http://ir.uitm.edu.my/id/eprint/27720/1/TM_ZURAINI%20KERYA%20EH%2010_5.pdf

id	uitm-27720
recordtype	eprints
spelling	uitm-277202020-01-24T07:51:22Z http://ir.uitm.edu.my/id/eprint/27720/ Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya Kerya, Zuraini Environmental protection Municipal refuse. Solid wastes Solid waste disposal becomes an increasingly serious problem due to rapid growth in industrial sector. Most of the industrial solid wastes are classified as scheduled waste, which are highly contaminated with heavy metals and toxic compounds. Scheduled waste must be disposed according to the procedures laid in the Environmental Quality Act 1974 in order to ensure health and safety of the public, nature and its habitat. Sulphate is one of the chemical compounds, which produces toxic gas, hydrogen sulphide during biological reduction process by organisms. The focus of this study is to remove the sulphate compound from industrial solid waste, i.e. silica sludge. The characteristics of silica sludge were identified before and after treatment process. The results show that the silica sludge contains more than 6% of sulphate. Under a laboratory scale, the research involves identifying the effectiveness of chemicals such as hydrogen peroxide and hydrochloric acid on the desulphurisation process. A different concentration of chemicals, reaction times, temperature, and mixture ratio were applied to investigate the best condition for desulphurisation process. The best condition achieved for mixture of 10% HCI and 6% H2O2, at ratio 70 to 30 at reaction temperature 100°C with reaction time 3 hours. About 96.6 % of sulphate was removed from scheduled waste. The weight percent of sulphate removed from silica sludge increased with the increasing of temperatures and reaction times. At the same time the treatment successfully removed heavy metals contains in silica sludge. All the results were further analysed with the usage of the TCLP Test, X-ray Diffraction (XRD) and Fourier Transform Infra-red (FTIR) which confirms the reduction of sulphate and heavy metals after desulphurisation with HCI and H2O2. 2010 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/27720/1/TM_ZURAINI%20KERYA%20EH%2010_5.pdf Kerya, Zuraini (2010) Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Environmental protection Municipal refuse. Solid wastes
spellingShingle	Environmental protection Municipal refuse. Solid wastes Kerya, Zuraini Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
description	Solid waste disposal becomes an increasingly serious problem due to rapid growth in industrial sector. Most of the industrial solid wastes are classified as scheduled waste, which are highly contaminated with heavy metals and toxic compounds. Scheduled waste must be disposed according to the procedures laid in the Environmental Quality Act 1974 in order to ensure health and safety of the public, nature and its habitat. Sulphate is one of the chemical compounds, which produces toxic gas, hydrogen sulphide during biological reduction process by organisms. The focus of this study is to remove the sulphate compound from industrial solid waste, i.e. silica sludge. The characteristics of silica sludge were identified before and after treatment process. The results show that the silica sludge contains more than 6% of sulphate. Under a laboratory scale, the research involves identifying the effectiveness of chemicals such as hydrogen peroxide and hydrochloric acid on the desulphurisation process. A different concentration of chemicals, reaction times, temperature, and mixture ratio were applied to investigate the best condition for desulphurisation process. The best condition achieved for mixture of 10% HCI and 6% H2O2, at ratio 70 to 30 at reaction temperature 100°C with reaction time 3 hours. About 96.6 % of sulphate was removed from scheduled waste. The weight percent of sulphate removed from silica sludge increased with the increasing of temperatures and reaction times. At the same time the treatment successfully removed heavy metals contains in silica sludge. All the results were further analysed with the usage of the TCLP Test, X-ray Diffraction (XRD) and Fourier Transform Infra-red (FTIR) which confirms the reduction of sulphate and heavy metals after desulphurisation with HCI and H2O2.
format	Thesis
author	Kerya, Zuraini
author_facet	Kerya, Zuraini
author_sort	Kerya, Zuraini
title	Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
title_short	Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
title_full	Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
title_fullStr	Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
title_full_unstemmed	Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya
title_sort	sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / zuraini kerya
publishDate	2010
url	http://ir.uitm.edu.my/id/eprint/27720/ http://ir.uitm.edu.my/id/eprint/27720/1/TM_ZURAINI%20KERYA%20EH%2010_5.pdf
first_indexed	2023-09-18T23:18:54Z
last_indexed	2023-09-18T23:18:54Z
_version_	1777419298109652992

Sulphate removal in silica sludge via mixtures of hydrogen peroxide and hydrochloric acid solution / Zuraini Kerya

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