The Enhanced Brine Concentration Design Pilot Project (Project) includes the construction, purchase, installation, and testing of a 100 gallon per minute (gpm) AquaSelTM system, which was successfully tested at a laboratory bench-scale of 8 gpm using concentrate from EMWD's Menifee Desalter. To prove the scalability of the technology, the Project capacity of 100 gpm will be operated in two phases of 6 months each. The first phase will operate the system under similar conditions to the 8 gpm pilot system and test an improved design of the system precipitator. The second phase will operate the 100 gpm system under optimized conditions for a period of 6 months. The 100 gpm Project will enable EMWD to seamlessly move to a full-scale 400 gpm module system with four trains. The full-scale project would expand the desalination capacity to produce 15,000 AFY of potable supply and increase RO concentrate production proportionally. The full-scale project would reduce the volume of concentrate from 2.3 mgd to about 0.5 mgd, saving EMWD about $500,000 per year in disposal costs.
Eastern Municipal Water District
Improve local water supply reliability through advanced treatment of the brine from RO treatment of saline raw water. The Design Pilot will construct, operate, and evaluate full-scale innovative equipment that was found to be promising through a small-scale "lab bench" type analysis. This pilot will determine operability and operating costs for full-scale implementation.
Project Benefits a Disadvantaged Community (or SDAC):