Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan

The work focuses on the removal of Arsenic-III (As(III)) from water sample by an indigenous iron ore from Balochistan by adsorption method. Three iron ore samples were analyzed by X-Ray Diffractometer (XRD) and a sample from Shikarap containing iron 36.2% was selected because it contained the highes...

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Main Authors: Zulfiqar Ali Bhatti, Khadija Qureshi, Inamullah Bhatti, Raja Fahad Ashraf, Ghulamullah Maitlo
Format: Article
Language:English
Published: Mehran University of Engineering and Technology 2021-01-01
Series:Mehran University Research Journal of Engineering and Technology
Online Access:https://publications.muet.edu.pk/index.php/muetrj/article/view/1976
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spelling doaj-8e38ab3286bb436db26c8e6443b8e9e02021-01-23T20:56:59ZengMehran University of Engineering and TechnologyMehran University Research Journal of Engineering and Technology0254-78212413-72192021-01-01401163010.22581/muet1982.2101.021976Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of PakistanZulfiqar Ali Bhatti0Khadija Qureshi1Inamullah Bhatti2Raja Fahad Ashraf3Ghulamullah Maitlo4Department of Chemical Engineering, Mehran University of Engineering and Technology, Jamshoro, Sindh, Pakistan.Department of Chemical Engineering, Mehran University of Engineering and Technology, Jamshoro, Sindh, Pakistan.Department of Chemical Engineering, Mehran University of Engineering and Technology, Jamshoro, Sindh, Pakistan.Department of Textile Engineering, Mehran University of Engineering and Technology, Jamshoro, Sindh, Pakistan.Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, Sindh, Pakistan.The work focuses on the removal of Arsenic-III (As(III)) from water sample by an indigenous iron ore from Balochistan by adsorption method. Three iron ore samples were analyzed by X-Ray Diffractometer (XRD) and a sample from Shikarap containing iron 36.2% was selected because it contained the highest amount of hematite. The batch study was conducted to examine the adsorption by iron ore and maximum adsorption was observed at pH 6, 1/2 g dose per 50 mL solution, contact time 2 hr and shaking speed 150 rpm. At the optimized conditions, the removal was 89% when monitored at 50 μg L-1 initial concentration of arsenic. The arsenic removal was monitored by Atomic Absorption Spectrometer (AAS) using hydride generation. Dubinin - Radushkevich (D-R), Freundlich and Langmuir's isotherms were examined. The highest adsorption capacity of iron ore for As(III) removal was observed 13.67 μg g-1 by Langmuir model and Freundlich isotherm indicated good adsorption intensity with value n = 1.512. Thermodynamic parameters revealed that adsorption was exothermic and physisorption. The Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray (EDX) techniques were applied to scan the surface morphology and the percentage elemental composition of samples respectively. SEM results demonstrated that Shikarap mineral grains are an oval shape and these were changed after the uptake of As(III). The EDX spectra of Shikarap mineral confirm the As(III) adsorption on particles as As 4.19%.https://publications.muet.edu.pk/index.php/muetrj/article/view/1976
collection DOAJ
language English
format Article
sources DOAJ
author Zulfiqar Ali Bhatti
Khadija Qureshi
Inamullah Bhatti
Raja Fahad Ashraf
Ghulamullah Maitlo
spellingShingle Zulfiqar Ali Bhatti
Khadija Qureshi
Inamullah Bhatti
Raja Fahad Ashraf
Ghulamullah Maitlo
Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
Mehran University Research Journal of Engineering and Technology
author_facet Zulfiqar Ali Bhatti
Khadija Qureshi
Inamullah Bhatti
Raja Fahad Ashraf
Ghulamullah Maitlo
author_sort Zulfiqar Ali Bhatti
title Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
title_short Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
title_full Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
title_fullStr Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
title_full_unstemmed Arsenic (III) Removal from Aqueous Water by Indigenous Iron Ore Adsorbent from Balochistan Province of Pakistan
title_sort arsenic (iii) removal from aqueous water by indigenous iron ore adsorbent from balochistan province of pakistan
publisher Mehran University of Engineering and Technology
series Mehran University Research Journal of Engineering and Technology
issn 0254-7821
2413-7219
publishDate 2021-01-01
description The work focuses on the removal of Arsenic-III (As(III)) from water sample by an indigenous iron ore from Balochistan by adsorption method. Three iron ore samples were analyzed by X-Ray Diffractometer (XRD) and a sample from Shikarap containing iron 36.2% was selected because it contained the highest amount of hematite. The batch study was conducted to examine the adsorption by iron ore and maximum adsorption was observed at pH 6, 1/2 g dose per 50 mL solution, contact time 2 hr and shaking speed 150 rpm. At the optimized conditions, the removal was 89% when monitored at 50 μg L-1 initial concentration of arsenic. The arsenic removal was monitored by Atomic Absorption Spectrometer (AAS) using hydride generation. Dubinin - Radushkevich (D-R), Freundlich and Langmuir's isotherms were examined. The highest adsorption capacity of iron ore for As(III) removal was observed 13.67 μg g-1 by Langmuir model and Freundlich isotherm indicated good adsorption intensity with value n = 1.512. Thermodynamic parameters revealed that adsorption was exothermic and physisorption. The Scanning Electron Microscope (SEM) and Energy Dispersive X-Ray (EDX) techniques were applied to scan the surface morphology and the percentage elemental composition of samples respectively. SEM results demonstrated that Shikarap mineral grains are an oval shape and these were changed after the uptake of As(III). The EDX spectra of Shikarap mineral confirm the As(III) adsorption on particles as As 4.19%.
url https://publications.muet.edu.pk/index.php/muetrj/article/view/1976
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