Waste nut, want nut

 作者:公西镒邸     |      日期:2019-03-07 03:10:09
Nutshells discarded by the food industry could help soak up metal-based pollutants from water. Traditionally, coal has been the source of “activated” carbon—a substance so minutely holed that its high effective surface area lets it absorb other chemicals. Now, researchers with the US Agricultural Research Service have developed a process that activates the carbon in cheap waste nutshells,