The Interaction Effect of Magnetism on Arsenic and Iron Ions in Water Publisher



Miranzadeh MB¹ ; Naderi M² ; Past V² Show Affiliations
Source: Desalination and Water Treatment Published:2021

Abstract

Recently, attention has been focused on the use of physical methods, such as the application of magnetic fields, to reduce mineral impurities in water. The purpose of this study was to survey the effects of the magnetic fields on the interaction of arsenic and iron ions in aqueous solutions. In this study, an experimental setup was designed, and also a circular ferrite magnet with the mean magnetic flux density of 10 mT was used to apply the magnetism. The dissolved arsenic content was analyzed by inductively coupled plasma. The results of the study indicated that the arsenic level of the samples without iron fillings was reduced. The removal efficiencies of arsenic after exposure to the magnetic fields over contact times of 5, 10, and 15 min were 42.06%, 49.06%, and 55.26%, respec-tively. Moreover, passing the samples through the magnetic column caused the separation of AsO2-ions from arsenic-iron complexes and, the soluble arsenic was therefore increased. When placed in magnetic fields, a force was applied to the multi-ionic species; the bond between the ions was then weakened and they were dissociated. Subsequently, the arsenic ions were deviated and reacted with a spiral metal inside a column. It can be concluded that the dissociation and dissolution of the ions in the process were due to the mechanisms of the Laplace–Lorentz force and the Hall effect. © 2021 Desalination Publications. All rights reserved.