APPLICATIONS OF TECHNOLOGY:
- Arsenic removal
- Improved arsenic removal performance at high current density and high charge dosage rate
- Lower cost of operation and small space requirements
- Current ECAR technology, albeit successful in the field, has some limitations:
- The dissolution of atmospheric oxygen that is necessary for successful functioning is a slow process.
- It requires high manual maintenance and is therefore cumbersome and expensive.
Researchers at Berkeley Lab led by Ashok Gadgil have overcome several limitations of the conventional ECAR technology.
The present device allows for much higher water throughput for a given reactor size and low labor costs owing to minimal manual maintenance requirements of the iron anodes. It is a favorable ZLD (Zero Liquid Discharge) technology and offers greater reliability. Testing demonstrated an effective treatment from 30-50 ppm arsenic to < 3 ppm arsenic in a given water sample. Ultimately, the novel process enables arsenic safe drinking water at high flow rates.
DEVELOPMENT STAGE: Proven principle
FOR MORE INFORMATION:
OPPORTUNITIES: Available for licensing or collaborative research.
SEE THESE OTHER BERKELEY LAB TECHNOLOGIES IN THIS FIELD:
Air-Cathode ECAR (ACE) 2017-189
ECAR: Low Cost Electrochemical Arsenic Removal from Drinking Water Supplies IB-2126