Towards a revolution in seawater desalination

Scientists hope to find a solution to effectively desalinate seawater to solve the global water crisis. And one team seems to have made great strides in this area.

There is plenty of water on our Earth. Yet up to two-thirds of the world’s population suffers from a lack of water. A situation that could get worse climate changeclimate change and population growth. In some areas of the world, water desalinationwater desalination it is decisive for the supply of fresh and drinking water.

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Fresh water from sea water

Several technologies enable desalination of seawater, desalination by distillation or reverse osmosis. And scientists from New York University (United States of America) are now proposing to optimize solutions for electrochemical redox flow desalination.

How does it work ? The researchers explain this in detail in the journal Cell Reports Physical Science. And in summary, thanks to the injection of seawater in two streams into a network of channels separated by ion exchange membranes that facilitate the movement of ions. of ‘clean waterclean water is then produced with increased efficiency by 20% and lower energy consumption. Everything is powered by renewable energy sources such as solar or wind energy.

Storage of fresh water and renewable electricity

If necessary, the system can work in reverse. Because the electricity was stored as chemical energy in concentrated salt and fresh water, both created in the previous process. If the two waters mix, this chemical energy can be converted back into renewable electricity. However, although the work of physicistsphysicists from New York University seems to be a big step forward, more research will be needed to perfect the process and make it a bit cheaper.

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