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Electrodialysis Reversal Desalination

Electrodialysis reversal desalination, commonly abbreviated EDR, is a water desalination process in which electricity is applied to electrodes to pull naturally occurring dissolved salts through an ion exchange membrane to separate the water from the salts. EDR produces two effluent streams: a low salinity product water and a high salinity concentrate.

In the reversal process, the polarity of the electrodes is switched at fixed intervals to reduce the formation of scale and subsequent fouling and allow the EDR to achieve higher water recoveries.

EDR is used to treat brackish waters with moderate total dissolved solids (TDS) and waters that have a high scaling potential due to elevated levels of particular contaminants such as barium (Ba) and strontium (Sr). EDR is also effective on high silica (SiO2) feedwaters.

AMTA is the only industry organization that focuses specifically on membrane processes including reverse osmosis (RO), nanofiltration (NF), microfiltration (MF), ultrafiltration (UF), electrodialysis reversal desalination (EDR), and membrane bioreactors (MBR). The AMTA website offers a wide range of proprietary Fact Sheets and a complete Digital Library of presentations, posters, and papers on all topics related to membrane treatment, membrane systems, and regulatory and compliance topics.

AMTA is the only industry organization that focuses specifically on membrane processes including reverse osmosis (RO), nanofiltration (NF), microfiltration (MF), ultrafiltration (UF), electrodialysis reversal desalination (EDR), and membrane bioreactors (MBR). The AMTA website offers a wide range of proprietary Fact Sheets and a complete Digital Library of presentations, posters, and papers on all topics related to membrane treatment, membrane systems, and regulatory and compliance topics.

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Electrodialysis Reversal Desalination

Electrodialysis Reversal Desalination Membrane

American Membrane Technology Association

PO Box 14918, Tallahassee, FL 32317

Tel. 772-469-6797

info@amtaorg.com

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