Top ten new water technologies

GWI's list of the ten most important new technologies which could change the way the world of water works.

* Aquaporins: membranes which replicate the way nature removes salt from water, for example in the kidneys or in mangroves. They could dramatically reduce the energy needed in desalination. Progress rating: 1/5

* Bio-polymers from wastewater: biopolymers are a great natural alternative to petrochemical-based plastics; what is more, they can be made during the biological digestion of sewage...

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