Advanced Water Treatment of Estuarine Water Supplies

The goal of this project was to fill knowledge gaps with respect to treatment of estuarine water supplies using existing and advanced technologies, and disinfectant combinations. The aim was to meet current and future regulations, as well as utilities’ water quality treatment goals. Specific objectives included: Investigate effects of multiple disinfectants/oxidants including chlorine; Determine optimum disinfectant combination(s) ; Investigate and evaluate a selection of advanced technologies and determine their impact on distribution system water quality in terms of DBP formation; Determine threshold levels of source water quality and disinfection requirements; Provide a comparative cost analysis for the proposed solutions, Literature and current and future regulations were reviewed, and data analyzed from the participating water districts which utilize supplies from the Sacramento-San Joaquin Delta in California. Pilot and bench-scale studies are discussed along with details of the conclusions. Includes CD with Appendices.