On comparing together the loss of weight f metal in the fresh water, sea water ... only a dight tinge of a greenish infusion can be de--ectedj a sure indication of the scarcity of oxygen.

Researchers have proposed using polymer membranes modified with copper, zinc, and chromium metal ions for water purification. These polymers were used for the first time in water purification via ...

A miraculous step forward in material science could unlock a solution to the water crisis plaguing the globe by sourcing ...