ARSENIC REMEDIATION METHODS AND COATED ADSORBENT COMPOSITIONS THEREFOR

摘要

Methods for making nano sized iron oxide or iron oxyhydroxide particle dispersions wherein the particles are coated onto a carrier substrate. Additionally coated adsorbent compositions are provided and include the nano sized iron oxide or iron oxyhydroxide particles adsorbed onto the surface of the substrate. Additionally methods of using the coated adsorbent compositions to reduce arsenic levels in aqueous mediums are disclosed. Water purification units are also provided and include an adsorbent layer.