Adsorptive removal of arsenate using inorganic magnetite particles

Arsenic (As)-contaminated drinking water is a serious health problem in many parts of the world. Although magnetite particles have been shown to be effective at removal of arsenic from water, there has been no research to assess the feasibility of using mill scale-derived magnetite for water treatment. This project was conducted to evaluate magnetite particles as a cost-effective and eco-friendly As adsorbent. Mill scale iron waste has been used to prepare magnetite. The synthesized magnetite was fully characterized and used for the removal of arsenate anion from water. Magnetite showed adsorption capacity of 8.612 mg/g for arsenate anion. Desorption studies were done on the adsorbent to check the recyclability. Magnetite was regenerated with no change in arsenic removal efficiency.