Adsorbent Approach to Contaminant Removal - Functionalized Activated Alumina Media is Highly Effective  Multi-metal contaminant removal  Single pass treatment  High adsorbent capacity: up to 75% by weight  Ability to reach ultra-low levels (ppb and ppt)  Effective across broad pH range: pH 3 to 10  Low fouling potential  Passes TCLP for non-hazardous disposal option Water flow and contact time are the only engineering parameters Contaminants Removed MercuryArsenicSelenite CopperFluorideSelenate CadmiumThalliumVanadium TinBarium Hexavalent Chromium AntimonyCobalt Pellet Size: Nominal 1/8” LeadZinc SilicaMolybdenum NickelCyanide Removal of soluble heavy metals from water by chemisorption: Bonding at chemically enriched sites throughout enhanced alumina-based media

Application Methodology Column Bench Testing Available for evaluating contact time, pretreatment needs and commercial optimization Commercial Systems Inexpensive and easy to deploy in all size pilot and commercial units Industry standard vessels Temporary Treatment Ease of use allows for temporary treatment options Remote Location application

One Media – Multiple Solutions Lower Cap-ex and Op- ex than all other effective treatment options (>=90%) Easy to deploy, change out and non- hazardous disposal (significantly reduced “hidden cost” ) Have a system in place and a client in environmental compliance in 6-8 weeks