When you purchase through radio link on our site , we may make an affiliate commission . Here ’s how it exercise .
There ’s an quondam gag that if you were reincarnated , you might want to come back as a polystyrene froth cup .
Why ? Because they last forever . Ba - dum - bum .
Immortal Polystyrene Foam Meets its Enemy
Despite being made 95 per centum of air , polystyrene foam ’s manufactured immortality has posed a problem for recycling drive . More than 3 million tons of the durable material is create every year in the United States , harmonise to the U.S. Environmental Protection Agency . Very slight of it is recycled .
assistance may come from bacteria that have been found to eat polystyrene froth and wrick it into available charge plate . This is the stuff recycling dreams are made of : Yesterday ’s cup could become tomorrow ’s plastic spoon .
Kevin O’Connor of University College Dublin and his colleagues ignite polystyrene foam to exchange it to styrene crude . The natural shape of styrene is in real peanuts , strawberries and a good steak . A synthetic form is used in cable car parts and electronic constituent .
Anyway , the scientist fed this styrene rock oil to the soil bacteriaPseudomonas putida , which converted it into biodegradable credit card bonk as PHA ( polyhydroxyalkanoates ) .
PHA can be used to make plastic forks and promotional material film . It is resistant to heat , grease and oil colour . It also survive a tenacious time . But unlike polystyrene foam , PHA biodegrades in territory and water .
The process will be detailed in the April 1 issue of the American Chemical Society journalEnvironmental Science & Technology .
