According to UNICEF, there are about 1.42 billion people living in areas with water shortages and only 3% of the Earth's water is available for drinking.
Daily Mail reported on October 21 that scientists from Northeastern University, USA have developed a process of turning cow dung into a filter to filter un drinkable water. They hope to solve the global water crisis through this improvement.
Scientists collect a large amount of cow manure from local farms and blow them up to extremely high temperatures of 1,700 degrees Celsius to kill bacteria. After removing bacteria, the phank is converted into carbon powder and then turned into black foam to filter the salt out of the seawater.
Floating on the surface of the seawater and when the sunlight shines on this area, the water below will turn into water vape and pass through foam as a drinking liquid.
"The water is created to be very pure and has a sodium content significantly lower than the US Environmental Protection Agency's standards for drinking water," the researchers said.
The materials we use are completely natural and durable, says Professor Yi Zheng of Northeastern University. This natural material is usable, cheap, easy to find and easy to produce. Local communities can use this technology to build their own desaltation systems.
