In Switzerland, Nespresso capsules are recycled a fair lot. You can find nearly anywhere nespresso capsules bins. Even more, when you buy capsules online, they give you a bag for you to throw your used capsules in. Once full, you simply drop it in your mailbox and the mailman takes it away.

They are then recycled: the aluminium is smelted, and the coffee grounds digested into methane which is then reinjected into the gas network