The present invention is directed to an adsorbent for removing arsenic species from ground water and/or surface water systems. Such adsorbent removes both As(III) and As(V), thereby providing potable water. Also provided is a method and/or device (e.g., filter) for removing arsenic species from contaminated...http://www.google.es/patents/US6790363?utm_source=gb-gplus-sharePatente US6790363 - Method of treating arsenic-contaminated waters
