Imperial Irrigation District selects advanced water treatment supplier
Key Highlights
- The Imperial Irrigation District selected an advance water treatment system for the El Centro Generating Station.
- The project involves advanced membrane microfiltration and high-recovery FR-RO.
- Substantially reduced concentrate streams are directed to evaporation ponds, supporting water conservation efforts.
- The initiative aligns with IID's broader wastewater mitigation and sustainability programs.
The Imperial Irrigation District (IID) has selected ROTEC USA LLC to provide advanced water treatment systems for the El Centro Generating Station (ECGS) in El Centro, CA.
The project is part of IID's broader wastewater mitigation program to eliminate surface-water discharge from the generating station while increasing onsite water reuse. The new treatment system is being developed in response to increasingly stringent wastewater discharge requirements and will treat cooling tower blowdown for reuse within the facility.
ROTEC's scope includes the treatment of chemically softened cooling tower blowdown wastewater with membrane microfiltration and high-recovery Flow Reversal Reverse Osmosis (FR-RO), along with dedicated boiler feed reverse osmosis systems for the generating station. Water recovered by the FR-RO system will serve as feed to the boiler feed RO systems, enabling further onsite reuse, while the substantially reduced FR-RO concentrate stream will be directed to evaporation ponds.
The El Centro Generating Station produces more than 330 Mw of electricity and is a key component of IID's generation fleet, supporting reliable electric service across the Imperial and Coachella valleys.
The project is being delivered by W. M. Lyles Co. working alongside Aqua Engineering and Albert A. Webb Associates as part of the project's engineering and design team.