Access to clean drinking water is becoming a global issue. Competition for water is increasing according to U.S Intelligence, between now and 2040 fresh water availability will not keep up with demand for drinking water and use for making electricity. Larger countries will have problems getting water for crops and making advanced materials.
A defense contractor as found a way to get the salt out of seawater with minimal effort and energy
By producing thin carbon (graphene) membranes with holes about the size of a nanometer, and large enough to push water through but block the sale molecules. A nanometer is a billionth of a meter. It takes much less energy and force for the water to go through the filter separating the salt, sparing countries the expense of building exotic filters or processing plants.
It’s 500 times thinner than the best filter on the market
The new material called Perforene resembles nothing else out there on the market. The closest thing to it resembles paper and is three reams of paper thick, a foot and a half. The amount of energy used for the filters today would require 100 times less energy. It literally just “pops” right through the membrane, because the membrane is thinner than the atoms it is filtering. Thickness has always been a key factor in the desalination process and the amount of energy used to process it.
The company Lockhead Martin Corp. is looking for a partner to help commercialize it by 2014-2015.
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