C-EDR overcomes the limitations of ED/EDR
C-EDR compared to ED/EDR
C-EDR shares the advantages of Electrodialysis (ED) and Electrodialysis Reversal (EDR), namely ion separation using selective membranes. But the breakthrough is that C-EDR overcomes all the limitations of ED/EDR including:
- C-EDR uses highly charged capacitive electrodes instead of DC current.
The large capacitive electrodes can operate at much lower voltage and current than the ED/EDR circuit, reducing energy costs dramatically.
- C-EDR achieves higher recovery of product water. The patented cell technology can achieve recoveries of 95% in many applications.
- Higher electrical efficiency leads to lower energy requirements, thus lower operating costs
- Avoids scaling/fouling and off-gas problems associated with ED process, a significant maintenance and reliability advantage
C-EDR improves electrical efficiency by as much as 80% over reverse osmosis
C-EDR compared to RO
C-EDR is a very different process from Reverse Osmosis (RO). RO pushes water across specialty membranes, leaving ions behind. C-EDR in contrast, pushes ions across a membrane. This requires much less energy than pushing water.
- Lower capital costs due to the low-pressure process (RO requires expensive piping and vessels due to high pressure pumping requirements).
- Significant less chemicals. (RO requires pre and post treatment chemicals to prevent fouling and percipatation)
- Operating flexibility (ability to ramp up/down throughput)
- Less maintenance due to longer lasting membranes (RO membranes degrade faster due to the inherent process, e.g. moving water across membranes instead of ions)
- High efficiency, lower energy costs (theoretical…needs to be proven)