New Seawater Purification Method Beneficial For Remote Areas

Scientists from the Universities of Bath, Swansea, and Edinburgh have developed a new water purification method that converts seawater to drinking water. But unlike the popular reverse osmosis method, this new technique does not require high pressures and significant amounts of electricity.

The newly developed system uses a positively charged electrode. It pulls chloride ions and water molecules through the membrane. A negatively charged electrode, on the other hand, attracts sodium ions and prevents them from passing through the membrane. This process thereby separates salt from water molecules.

Prof. Frank Marken of the University of Bath’s Water Innovation Research Center and Institute of Sustainability said their method is ideal for use in remote areas or disaster zones.

“Our method could provide an alternative solution on a smaller scale, and because water can be extracted without any side products, this will save energy and won't involve an industrial scale processing plant,” he said.

Marken added that their experimental purification system, currently in the proof-of-concept phase, might be valuable for specific medical uses like drug dosing systems. They are also investigating its potential for applications like water recovery from different sources and drying processes.

Read the full article here to learn more about how this water purification method works.

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