Designers Julien Bergignat, Cecilia Jia & Johnny Chen have collaborated to create the Braun Envi urban dustbin. Basically when you toss your apple core into this bin, bio-reactive substances based on photo catalysis start doing their job and rehashes the trash as compost. The substances also remove odors and speed up the process.
The idea is to use these huge bins in public spaces, where people can drop their biodegradable trash, and the compost be collected and used later on. Main materials used in constructing the bin are stainless steel, aluminum, glass, polypropylene, polyethylene