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Project: Enhanced Brine Concentration Design Pilot Project

Description: 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.

Reference Number: 3860-P01-328

Implemented By: Eastern Municipal Water District

Objective: 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.

Type: Water Management

Total Cost: $3,750,982.00

Project Status: Project Implementation

On Time?: Yes    Within Scope?: Yes    Within Budget?: Yes

Estimated Completion: 12/31/2021    Actual Completion:

Associated Counties: Riverside

Project Benefits a Disadvantaged Community (or SDAC): No

Contribution SourcesContribution DateContribution Amount
Federal Contribution3/12/2018$400,000.00
Local Contribution3/12/2018$1,850,982.00
Prop. 1, Water Recycling3/12/2018$1,500,000.00

Project MetricMetric TopicQuantityUnit
Water ManagementDesalination  

Water Action Plan Target

Make Conservation a California Way of LifeAction Description
Increase Regional Self-Reliance and Integrated Water Management Across All Levels of GovernmentAction Description
Manage and Prepare for Dry PeriodsAction Description


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