FAO Estimates up to 2025 2 Billion People are in Need for Drinking Water

Solar Edition Instagram: One of the possible solutions to this problem is #desalination, namely treating to make it drinkable. However, removing salt from seawater requires 10 to 1000 times more energy than traditional methods of freshwater supply, namely pumping water from rivers or wells.

A team of engineers from the Department of Energy of Politecnico di has devised a new prototype to desalinate seawater in a sustainable and low-cost way, using more efficiently.
The working principle of the proposed is very simple: “Inspired by plants, which transport water from roots to leaves by capillarity and transpiration, our floating device is able to collect seawater using a low-cost porous material, thus avoiding the use of expensive and cumbersome pumps.

The collected seawater is then heated up by solar energy, which sustains the separation of salt from the evaporating water. This process can be facilitated by membranes inserted between contaminated and drinking water to avoid their mixing, similarly to some plants able to survive in marine environments (for example the mangroves)”, explain Matteo Fasano and Matteo Morciano, two members of the research team. ——————–***——————–
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According to FAO estimates, by 2025 nearly 2 billion people may not have enough #drinkingwater to satisfy their daily needs

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Location: Italy

Date: Jan 14, 2019 @ 10:15

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