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Project: System Configurations and Cooling Technologies for Waste-Heat-Driven Membrane Distillation in Desalination Applications with High Water Recovery

Description: This project will assess: 1) high water recovery and minimal brine discharge comparing recirculating and single-pass configurations, and 2) low electrical energy consumption through waste heat utilization and identification of energy efficient cooling approaches. Project implementation consists of three tasks: (1) Energy characterization - involves the investigation of energy properties of MD based on waste heat and cooling approaches and collection of time-varying temperature and flow rate data from waste-heat emitters; (2) Modification of bench-scale MD system and MD process intensification for recirculating feed configuration - involves modifications to the long-term bench-scale MD system in the laboratory and performing experiments to determine the optimal long-term operating conditions with a recirculating feed-stream configuration; and (3) MD process intensification for single-pass feed configuration - involves performing experiments to determine the optimal long-term operating conditions using a single-pass feed stream configuration. Results from the single-pass configuration will be compared to those from the recirculating feed configuration to determine the preferred feed-stream configuration.

Reference Number: 3860-P01-332

Implemented By: University of Southern California

Objective: The objective is to evaluate membrane distillation (MD) energy source, cooling alternatives, and feed configurations to enable higher water recovery, lower electrical energy consumption, and reduced brine discharge.

Type: Water Management

Total Cost: $447,217.00

Project Status: Project Implementation

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

Estimated Completion: 5/31/2022    Actual Completion:

Associated Counties: Los Angeles

Project Benefits a Disadvantaged Community (or SDAC): No

Contribution SourcesContribution DateContribution Amount
Local Contribution9/3/2019$223,609.00
Prop. 1, Water Recycling2/12/2018$223,608.00

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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