
1) American invention 2) Waste treatment technology
Found on
https://www.crosswordclues.com/clue/bigbelly

BigBelly is a solar powered, rubbish-compacting bin, manufactured by U.S. company BigBelly Solar for use in public spaces such as parks, beaches, amusement parks, and universities. The bin was designed and originally manufactured in Needham, Massachusetts by Seahorse Power, a company set up in 2003 with the aim of reducing fossil fuel consumption....
Found on
http://en.wikipedia.org/wiki/BigBelly
No exact match found.