Researchers Develop A New Water Purification Method Based on Electrodialysis

A new water purification method based on electrodialysis and designed at the Beckman Institute for Advanced Science and Technology effectively separates salt and organic particles from the water. But unlike traditional electrodialysis, this new system is cheaper and consumes less energy.

Integral to this novel method is a reduction-oxidation (redox) reaction that makes desalination more efficient. It works well with the unique polymer-based material the research team created, requiring less energy than water-splitting.

“We need a way to purify drinking water that’s low-energy, inexpensive, and useful for the communities that need it the most. I see our solution as a platform to tackle both the energy and water crises,” according to Xiao Su, a Beckman researcher and assistant professor of chemical and biomolecular engineering at the University of Illinois Urbana-Champaign.

Allowing the researchers to achieve this goal is the use of nanofiltration membranes instead of ion-exchange membranes. Integrating nanofiltration membranes costs less without compromising on strength and efficacy.

The team intends to test the new system in purifying larger volumes of water and examine its performance in salt or brackish water.

Read the full article here to learn more about the new electrodialysis-based water purification method.

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