Scientists have developed a new method that converts seawater into drinking water that could be useful in disaster zones where there is limited electrical power. The most popular method for removing salt (sodium chloride) from sea water is reverse osmosis, which uses a porous membrane that allows water molecules through but not salt. However, this method requires a high pressure and substantial amounts of electricity. The membrane often clogs up, reducing the efficiency of the process. The new technique, developed by a team of scientists from the Universities of Bath, Swansea and Edinburgh, doesn't use any external pressure but instead uses a small amount of electrical energy to pull chloride ions through the membrane towards a positively charged electrode.

https://www.miragenews.com/innovative-method-purifies-drinking-water-in-1089493/

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