Karschunke, Karsten Caceres, Luis Jekel, M. Arsenic removal by corrosion induced adsorption Apart from the arising arsenic crisis in Bangladesh, some spots of natural arsenic contamination around the world are known since a long time (Sancha,1992). The Andean region of northern Chile and the neighbouring countries Argentina and Bolivia are one of those regions, where arsenic concentrations around 500 μg/L are found in ground and surface water and used for rural and small town water supply without any treatment. In this desert region a change to alternative water sources is not possible, resulting in a need for the development of low-cost and easy-tomaintain processes for the removal of arsenic from drinking water. untagged 2018-02-12
    https://repository.lboro.ac.uk/articles/conference_contribution/Arsenic_removal_by_corrosion_induced_adsorption/9593447