The United States to develop efficient water purification 'super sand'

A new message, the United States developed efficient absorption of contaminants super sand.

human from more than 6000 years ago began to use sand to filter water, now in the price of bottled purified water as than gold, this method still plays a role, even supported by the world health organization.

at rice university in Houston, the researchers created a function is the same but more efficient 'super sand', Mr Najib. Ma Zong DE at rice university and colleagues used a nanometer material by the name of graphite oxide in a more cost-effective way to improve the filterability of sand, and they covered a layer of graphite oxide on the sand, to create 'super sand', this kind of material can be successful removal of mercury in the water and pigment material. Mercury in filtration tests, common saturated sand 10 minutes, super sand can absorb heavy metal 50 minutes, however, the researchers said, their filtering ability can be comparable to the activated carbon that sells on the market, they also improve the efficiency of the super sand, in order to more efficient to remove more contaminants.