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The use of low grade limestone in acid mine drainage treatment

In this study, low grade limestone (LGL) was used in treating acid mine drainage (AMD). Based on X-ray fluorescence (XRF) result, the content of calcium carbonate mineral in limestone used was around 80% that can be considered as LGL. The pH of AMD samples increased after treated with all parameter...

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Main Authors:	Othman, A., Sulaiman, A., Ibrahim, I.
Format:	Article
Language:	English
Published:	Malaysian Society of Analytical Sciences 2019
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/89467/1/AzliSulaiman2019_TheUseofLowGradeLimestone.pdf http://eprints.utm.my/id/eprint/89467/ http://www.dx.doi.org/10.17576/mjas-2019-2303-11
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spelling	my.utm.894672021-02-09T04:26:10Z http://eprints.utm.my/id/eprint/89467/ The use of low grade limestone in acid mine drainage treatment Othman, A. Sulaiman, A. Ibrahim, I. TP Chemical technology In this study, low grade limestone (LGL) was used in treating acid mine drainage (AMD). Based on X-ray fluorescence (XRF) result, the content of calcium carbonate mineral in limestone used was around 80% that can be considered as LGL. The pH of AMD samples increased after treated with all parameter weights of LGL at every five minutes of interval times. The parameters weights of LGL used in the experiments were 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g. For every parameter weight of LGL, the interval times used were 0, 5, 15, 20, 25 and 30 minutes. The highest of pH value obtained was 6.44 ± 0.00 by using 6.0 g of LGL at interval time 30 minutes. The suitable pH value chosen was 6.11 ± 0.00 by using 5.0 g of LGL at interval time 20 minutes because the parameter had complied with Standards A and B of Environmental Quality Act 1974 with less cost compared to other parameters. Heavy metals content such as arsenic, cadmium, chromium, iron, manganese and zinc had decreased after reaction with all LGL weights. The content of arsenic in AMD samples after reaction with all LGL weights had complied with both standards’ requirement except with 1.0 g of LGL. The percentage of removal heavy metals by using all parameter weights of LGL such as arsenic, cadmium, chromium, iron, manganese and zinc were around 98.8 to 99.8%, 53.8 to 88.5%, 94.7 to 96.5%, 99.6 to 100%, 34.6 to 38.9% and 27.0 to 90.1%, respectively. Malaysian Society of Analytical Sciences 2019 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/89467/1/AzliSulaiman2019_TheUseofLowGradeLimestone.pdf Othman, A. and Sulaiman, A. and Ibrahim, I. (2019) The use of low grade limestone in acid mine drainage treatment. Malaysian Journal of Analytical Sciences, 23 (3). pp. 472-478. ISSN 1394-2506 http://www.dx.doi.org/10.17576/mjas-2019-2303-11 DOI: 10.17576/mjas-2019-2303-11
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Othman, A. Sulaiman, A. Ibrahim, I. The use of low grade limestone in acid mine drainage treatment
description	In this study, low grade limestone (LGL) was used in treating acid mine drainage (AMD). Based on X-ray fluorescence (XRF) result, the content of calcium carbonate mineral in limestone used was around 80% that can be considered as LGL. The pH of AMD samples increased after treated with all parameter weights of LGL at every five minutes of interval times. The parameters weights of LGL used in the experiments were 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g. For every parameter weight of LGL, the interval times used were 0, 5, 15, 20, 25 and 30 minutes. The highest of pH value obtained was 6.44 ± 0.00 by using 6.0 g of LGL at interval time 30 minutes. The suitable pH value chosen was 6.11 ± 0.00 by using 5.0 g of LGL at interval time 20 minutes because the parameter had complied with Standards A and B of Environmental Quality Act 1974 with less cost compared to other parameters. Heavy metals content such as arsenic, cadmium, chromium, iron, manganese and zinc had decreased after reaction with all LGL weights. The content of arsenic in AMD samples after reaction with all LGL weights had complied with both standards’ requirement except with 1.0 g of LGL. The percentage of removal heavy metals by using all parameter weights of LGL such as arsenic, cadmium, chromium, iron, manganese and zinc were around 98.8 to 99.8%, 53.8 to 88.5%, 94.7 to 96.5%, 99.6 to 100%, 34.6 to 38.9% and 27.0 to 90.1%, respectively.
format	Article
author	Othman, A. Sulaiman, A. Ibrahim, I.
author_facet	Othman, A. Sulaiman, A. Ibrahim, I.
author_sort	Othman, A.
title	The use of low grade limestone in acid mine drainage treatment
title_short	The use of low grade limestone in acid mine drainage treatment
title_full	The use of low grade limestone in acid mine drainage treatment
title_fullStr	The use of low grade limestone in acid mine drainage treatment
title_full_unstemmed	The use of low grade limestone in acid mine drainage treatment
title_sort	use of low grade limestone in acid mine drainage treatment
publisher	Malaysian Society of Analytical Sciences
publishDate	2019
url	http://eprints.utm.my/id/eprint/89467/1/AzliSulaiman2019_TheUseofLowGradeLimestone.pdf http://eprints.utm.my/id/eprint/89467/ http://www.dx.doi.org/10.17576/mjas-2019-2303-11
_version_	1691733101597687808
score	13.251813

The use of low grade limestone in acid mine drainage treatment

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