Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Modified and unmodified low-cost iron-containing solid wastes as adsorbents for efficient removal of As(III) and As(V) from mine water. / Iakovleva, Evgenia; Maydannik, Philipp; Ivanova, Tatiana V.; Sillanpää, Mika; Tang, Walter Z.; Mäkilä, Ermei; Salonen, Jarno; Gubal, Anna; Ganeev, Alexander A.; Kamwilaisak, Khanita; Wang, Shaobin.
в: Journal of Cleaner Production, Том 133, 01.10.2016, стр. 1095-1104.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Modified and unmodified low-cost iron-containing solid wastes as adsorbents for efficient removal of As(III) and As(V) from mine water
AU - Iakovleva, Evgenia
AU - Maydannik, Philipp
AU - Ivanova, Tatiana V.
AU - Sillanpää, Mika
AU - Tang, Walter Z.
AU - Mäkilä, Ermei
AU - Salonen, Jarno
AU - Gubal, Anna
AU - Ganeev, Alexander A.
AU - Kamwilaisak, Khanita
AU - Wang, Shaobin
N1 - Publisher Copyright: © 2016 Elsevier Ltd Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - Sulphate tailings and iron sand – industrial solid wastes containing iron oxide/hydroxides – were investigated as potential adsorbents for arsenic removal from water. Two effective methods of surface modification by NaOH treatment and atomic layer deposition of TiO2 and Al2O3 thin films were used for increasing As(III) and As(V) removal capacities of both adsorbents. The structure and surface area of the materials were characterised by scanning electron microscopy, middle infrared region spectroscopy, energy dispersive X-ray spectroscopy, and nitrogen adsorption. The iron sand waste was capable of binding significant amounts of As(III) and As(V) from synthetic solutions and wastewater. The sulphate tailings also showed a high adsorption capacity. Adsorption kinetics showed that equilibrium was reached within 240 min and fit to a pseudo second-order model with correlation coefficients greater than 0.99. Adsorption capacity was at the highest value at a solution pH range of 6–8. The Langmuir and Toth models can be used to fit the adsorption isotherms. The research showed that the proposed solid wastes can be successfully used for the adsorption of As(III) and As(V).
AB - Sulphate tailings and iron sand – industrial solid wastes containing iron oxide/hydroxides – were investigated as potential adsorbents for arsenic removal from water. Two effective methods of surface modification by NaOH treatment and atomic layer deposition of TiO2 and Al2O3 thin films were used for increasing As(III) and As(V) removal capacities of both adsorbents. The structure and surface area of the materials were characterised by scanning electron microscopy, middle infrared region spectroscopy, energy dispersive X-ray spectroscopy, and nitrogen adsorption. The iron sand waste was capable of binding significant amounts of As(III) and As(V) from synthetic solutions and wastewater. The sulphate tailings also showed a high adsorption capacity. Adsorption kinetics showed that equilibrium was reached within 240 min and fit to a pseudo second-order model with correlation coefficients greater than 0.99. Adsorption capacity was at the highest value at a solution pH range of 6–8. The Langmuir and Toth models can be used to fit the adsorption isotherms. The research showed that the proposed solid wastes can be successfully used for the adsorption of As(III) and As(V).
KW - ALD technology
KW - Arsenic removal
KW - Low-cost adsorbents
KW - Mine water treatment
UR - http://www.scopus.com/inward/record.url?scp=84995676573&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2016.05.147
DO - 10.1016/j.jclepro.2016.05.147
M3 - Article
VL - 133
SP - 1095
EP - 1104
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
ER -
ID: 7654315