Coffee-infused foam removes lead from contaminated water
Thursday, September 22, 2016 - 08:02
in Earth & Climate
Coffee is one of the most popular drinks in the U.S., which makes for a perky population -- but it also creates a lot of used grounds. Scientists now report an innovative way to reduce this waste and help address another environmental problem. They have incorporated spent coffee grounds in a foam filter that can remove harmful lead and mercury from water.