Adsorption of Arsenic by Laterite, Sandstone and Shale in a Fixed-Bed Column  

作　　者：N’Da Akoua Alice Koua-Koffi Sandotin Lassina Coulibaly Petemanagnan Jean-Marie Ouattara Lacina Coulibaly N’Da Akoua Alice Koua-Koffi;Sandotin Lassina Coulibaly;Petemanagnan Jean-Marie Ouattara;Lacina Coulibaly(Agronomic, Forestry and Environmental Engineering, Department of Environment and Sustainable Development, University of Man, Man, Cte dIvoire;Environmental Sciences and Management, Laboratory of Environment and Aquatic Biology, Nangui Abrogoua University, Abidjan, Cte dIvoire)

机构地区：[1]Agronomic, Forestry and Environmental Engineering, Department of Environment and Sustainable Development, University of Man, Man, Cte dIvoire [2]Environmental Sciences and Management, Laboratory of Environment and Aquatic Biology, Nangui Abrogoua University, Abidjan, Cte dIvoire

出　　处：《Journal of Materials Science and Chemical Engineering》2025年第1期45-60,共16页材料科学与化学工程(英文)

摘　　要：The removal of arsenic from water is essential for the protection of public health. To investigate the adsorption capabilities of laterite, sandstone, and shale for the removal of arsenic from aqueous solutions, column experiments were conducted. In this study, raw materials and heat-treated (calcined) materials were examined. The experiments assessed the influence of various parameters, including initial concentration, bed depth, and the effects of heat treatment. The findings revealed that the breakthrough curves were influenced by the initial concentration of arsenic, the depth of the bed, and the type of material used. For an initial arsenic concentration of 5 mg/L, columns containing 85 cm of calcined laterite, sandstone, and shale produced volumes of 7460 ml (1492 min), 3510 ml (702 min), and 4400 ml (880 min) of water with arsenic levels below 0.01 mg/L, respectively. These calcined materials demonstrate significant potential for the effective removal of arsenic from water.The removal of arsenic from water is essential for the protection of public health. To investigate the adsorption capabilities of laterite, sandstone, and shale for the removal of arsenic from aqueous solutions, column experiments were conducted. In this study, raw materials and heat-treated (calcined) materials were examined. The experiments assessed the influence of various parameters, including initial concentration, bed depth, and the effects of heat treatment. The findings revealed that the breakthrough curves were influenced by the initial concentration of arsenic, the depth of the bed, and the type of material used. For an initial arsenic concentration of 5 mg/L, columns containing 85 cm of calcined laterite, sandstone, and shale produced volumes of 7460 ml (1492 min), 3510 ml (702 min), and 4400 ml (880 min) of water with arsenic levels below 0.01 mg/L, respectively. These calcined materials demonstrate significant potential for the effective removal of arsenic from water.

关 键 词：GEOMATERIALS ADSORPTION ARSENIC Water 

分 类 号：P59[天文地球—地球化学]