• AWWA ACE68710

AWWA ACE68710

Comparison of Life Cycle Costs for Perchlorate Treatment Using Non-Regenerable Ion Exchange versus Biological Treatment

American Water Works Association , 11/01/2008

Publisher: AWWA

File Format: PDF

$12.00$24.00


This powerpoint presentation begins by providing a brief overview of the East Valley Water District in California's San Bernardino County and historic perchlorate levels. In 2006, the district started a planning level study to evaluate a centralized treatment facility consisting of four existing wells (Wells 24A, 24B, 25, and 107) that would treat for both perchlorate and nitrate. Project objectives included the following: develop conceptual-level design criteria for ion exchange and biological treatment; estimate life cycle costs; and, recommend treatment technology. Biological treatment alternative is outlined, along with life cycle cost analysis assumptions and a product flow comparison. Presentation conclusions and recommendations include the following: at this facility for low-level perchlorate and nitrate treatment, ion exchange is less expensive on a per acre-foot basis; use non-regenerable ion exchange for perchlorate removal; and, use regenerable ion exchange for nitrate removal. Includes tables, figures.

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