Jiarun (Judy) Wang ’21
Faculty Collaborator: Amanda Bowman, Chemistry & Biochemistry
Arsenic pollution has become a worldwide issue due to its high toxicity to human health and natural environment. Exposure to Arsenic will lead to the risk of short-term and chronic diseases. Adsorption is a useful tool to uptake the exceed arsenic species in water sources and commercial activated carbon was extracted to filtrate the As polluters. Recently, agricultural wastes such as rice husk are more commonly prepared as precursors to remove arsenic ions from water, and different treatments were done to the activation process to improve physical characteristics and removal capacity of adsorbents. In the present paper, the properties and As adsorption capacity of multiple raw materials been compared and discussed. Materials including rice straw, empty fruit bunch, rice husk, coconut husk, peanut hulls, and mango leaves are effective for arsenic and arsenate removal. Material such as millet stick and sugar beet pulp is fairly efficient for As uptake, and their sorption can further be advanced by Fe-impregnation. This paper should help future study to combine different precursor and activation method and create novel As adsorbents.