Work exchanger

By defining the combination of high pressure seawater feed pump and energy recovery system as the core hydraulic module of SWRO plants it becomes obvious that this subsystem mainly contributes to the specific water costs by its operational costs and has to be optimized by a complete approach. In the

This paper describes the upgrade of a seawater reverse osmosis (SWRO) unit by replacing the hydraulic turbocharger energy-recovery system with a Dual Work-Exchanger Energy-Recovery (DWEER) system. Before the upgrade, the unit operated at a capacity of 1,071 m³/d, and a specific electricity of 3.00 k