Alternative Approaches to Replace Ozone and BAC in California DPR Projects
11 am PT | 2 pm ET (1 hour)
WateReuse Members: Free; Others: $49
Join this webcast to hear experts in California discuss two alternative approaches that have great potential to replace ozone-BAC in some Direct Potable Reuse (DPR) projects without any substantial impacts on project cost, footprint, or operational complexity.
Draft California DPR regulations require a high degree of protection for unknown chemicals, chemical peaks, and pathogenic organisms where at least four separate treatment processes and three diverse treatment mechanisms are needed. While efficacy of ozone-BAC for controlling chemicals has been well proven, inclusion of these additional barriers in a potable reuse train may further increase operational complexity, footprint, and project costs which may shift interest of public agencies from DPR to IPR.
California’s draft regulations require DPR trains include ozone and biologically activated carbon (BAC) prior to full advanced treatment for chemical control, but also allow for alternatives if an agency demonstrates to the State Board that the proposed train provides an equivalent or better level of efficacy and reliability in removing contaminants of concern to public health.
- Ufuk Erdal, Arcadis
- Glen Daigger, University of Michigan