As I travel I’m always interested to see how trash is removed / recycled.
Huaraz, Peru was one of the best I’ve seen.
For a huge city, Buenos Aires seems to do a good job. The trash guys and their trucks are efficient and quick.
Their job is made easier by the cartoneros, which literally means “cardboard people”.
These are mostly young, fit, motivated guys who dash around city streets late evening sorting through dumpsters with metal hooks collecting cardboard for recycling. (Along with other valuables, I assume.)
It seems very competitive. There are a couple of cartoneros working each street.