Electrodialysis Reversal Provides Effective Treatment Approach for Concentrating Reverse Osmosis Brine
Abstract:Testing of an electrodialysis reversal (EDR) pilot unit for reverse osmosis (RO) brine minimization was performed. A mobile EDR piloting skid was leased from General Electric Company (GE) Water & Process Technologies for testing. The pilot unit was operated for 1,600 hours and analyzed for hydraulic and electrical performance. The RO brine, which is also the EDR feed, total dissolved solids (TDS) concentration averaged 3,040 mg/L during testing. The EDR unit achieved a maximum recovery of 80% and rejected 85% of the influent TDS when treating RO brine. The EDR unit increased the overall recovery of the desalting process to 92%. Throughout the pilot study, the EDR feed pressure and electrical resistance were steady during testing indicating stable operation. The high recovery and stable performance indicates that EDR is an effective treatment approach for concentrating RO brine.
Document Type: Research Article
Publication date: 2010-01-01
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites