The Water Research Foundation, a leading sponsor of research supporting the water community, and Soquel Creek Water District recently completed bench- and pilot-scale testing to explore treatment process efficacies for removing hexavalent chromium from the district’s groundwater supplies. The primary goals of this study were to evaluate Cr(VI) removal performance of strong base anion exchange (SBA-IX) and to compare and validate commercially available SBA-IX resin performance in terms of Cr(VI) exchange capacity, regeneration quality and frequency requirements. These tests also investigated innovative brine management techniques including brine reuse and treatment methods, which would render the spent brine waste less hazardous
