澳门新永利国际平台登录:Crabs clean up

2019-03-06 02:14:01

NEXT time you chew on a crab stick you could be doing your bit for the environment. It seems discarded crab shells from crab meat factories can soak up toxic heavy metals from water. Dong Seog Kim and his team at the Catholic University of Daegu in Korea found that granulated shells of snow crabs (Chionoecetes opilio) were better at mopping up lead, cadmium and chromium from solutions than activated carbon. He thinks it’s the calcium carbonate that does the trick, and that crab shells could be a cheap and easy way to clean up heavy metal pollution ( Water Research,