This is not really novel technology. Arsenic is effectively removed by iron oxides as well as by activated alumina and iron modified alumina. The permanganate oxidizes arsenite to arsenate which is easily removed by alumina. If your water is chlorinated it is already in oxidized arsenate form. Iron oxides remove both forms. Iron oxides will also remove lead , which they do not mention.
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
This is not really novel technology. Arsenic is effectively removed by iron oxides as well as by activated alumina and iron modified alumina. The permanganate oxidizes arsenite to arsenate which is easily removed by alumina. If your water is chlorinated it is already in oxidized arsenate form. Iron oxides remove both forms. Iron oxides will also remove lead , which they do not mention.