Webcast: Hexavalent Chromium Treatment with Strong Base Anion
Hexavalent Chromium Treatment with Strong Base Anion Exchange (SBA-IX), for which this Webcast is based on.
This project conducted an in-depth investigation of SBA-IX for Cr(VI) removal and residual brine management alternatives. While SBA-IX is a well-established drinking water technology for many contaminants, prior to the TC project, limited research had investigated SBA-IX for Cr(VI) removal. Project #4488 revealed that, in the water supply tested, SBA-IX repeatedly achieved greater than 20,000 bed volumes of treatment prior to regeneration. Brine recycle and treatment approaches also proved effective in minimizing waste residuals volumes. The findings from project #4488 confirmed SBA-IX as the best available treatment technology for the District and prompted the District to construct the first SBA-IX system specifically for potable Cr(VI) treatment. The report for this project has been posted on the WRF website.