Can We Turn Seawater Into Drinking Water

In fact people have been making seawater drinkable at least as far back as the ancient greeks.

Can we turn seawater into drinking water.

Then cover the bowl with plastic wrap and set a rock on top of the plastic wrap over the cup which will make a dip so fresh water can drip into the cup. In some areas salt water from the ocean for instance is being turned into freshwater for drinking. Geological survey makes up approximately 35 000 parts per million ppm of sea water s chemical composition. Actually we can and we do.

Desalination plants turn seawater into drinking water but also pump hypersaline water back into the environment. Developed by a team of researchers at alexandria university in egypt the procedure uses a desalination technique called pervaporation to remove the salt from sea water and make it drinkable. The simple hurdle that must be overcome to turn seawater into freshwater is to remove the dissolved salt in seawater. So why can t we convert seawater into drinking water.

That s especially troubling because desal has become extremely popular. A solar powered system can turn salt water into fresh drinking water for 25 000 people per day. Next put the bowl of saltwater in direct sunlight. To turn saltwater into drinking water start by pouring the saltwater into a bowl and placing a small cup in the center of the water.

Making sea water into drinking water requires removal of the dissolved salt that according to the u s. Even with all of the water in earth s oceans we satisfy less than half a percent of human water needs with desalinated water we currently use on the order of 960 cubic miles 4 000 cubic.