You may enjoy reading about Lunar Palace 1, China's latest experiment with regenerative life support systems:

https://www.space.com/40610-china-mock-moon-mission-lunar-pa...

Or BIOS-3, the Soviet Union's experiments in this area during the in 1970s:

https://en.wikipedia.org/wiki/BIOS-3

The EU has the MELiSSA program, which has a nice website and lots of meetings but no human-scale enclosures of which I'm aware:

https://www.melissafoundation.org/