EDR-Q™
Advanced Electrodialysis Reversal for Water and Process Applications
EDR-Q is a pathbreaking electrodialysis reversal technology that removes ions from a feed solution for water and non-water applications by applying a direct current and reversing the polarity of electrodes periodically. Designed for water recovery, desalination, solution concentration, and purification, EDR-Q employs state-of-the-art ion-exchange membranes to deliver exceptional consistent performance.
EDR-Q is ideally suited to applications including whey demineralization, high-grade protein separation, acid-alkali recovery, lithium concentration, among others. It ensures high purity and resource recovery beyond traditional water treatment applications such as brackish water desalination, zero liquid discharge (ZLD) systems, and industrial water & wastewater treatment.
Each EDR-Q stack is delivered on a modular basis, with a compact footprint to cater small to larger flow at high recovery rate for different industrial applications with reduced energy needs.
Learn More About EDR-Q™
Low Fouling & Stable Performance
Reduced scaling and fouling due to periodic polarity reversal, resulting in more consistent purity in long term with reduced maintenance and downtime.
Highly Energy-Efficient
EDR-Q is highly energy-efficient for low to medium salinity water (TDS 1,000–10,000 mg/L).
Optimized OPEX
Reduced chemical needs due to self-cleaning mechanism, long membrane life due to reduced fouling, and cost savings in power consumption result in low operating costs.
Robust Treatment
Ideal for handling high turbidity, SDI, and silica content along with many challenging water conditions including oil & grease.
High Recovery
Achieve up to 95% of water recovery.
Reliable Operation
Unique design thin spacers prevent anion-cation membrane contact, making treatment more reliable by preventing short circuits and salt leakage.
How Does EDR-Q™ Work?
An electrodialysis reversal (EDR) stack is comprised of alternating anion- and cation-selective membranes placed between anode (+) and cathode (–) electrodes, and secured with end plates. When direct current (DC) is applied, dissolved salts are driven through the ion-exchange membranes, effectively separating the feed solution into low- and high-salinity streams.
Over time, conventional systems experience scaling and fouling on the membrane surfaces, requiring frequent cleaning. EDR addresses these challenges with automatic polarity reversal, which periodically reverses the direction of ion transfer and simultaneously in situ cleaning membranes with reduced acid/base needs, ensuring efficient, stable, and high-water recovery and resource recovery.
Applications of EDR-Q™
Our Work
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