treating PLA (Polylactic acid) plastic to make it biodegradable

I am using PLA for 3D printing, and I know it does not degrade well in the wild. I would like to know if there is a chemical process I could use to treat it at home.


Specifically, I am looking for a cleaner alternative than throwing my 3d printing scraps in the garbage, so I wouldn't be generating toxic components when doing this, ideally. I would like the plastic to degrade (in a few years maybe?) when I put it underground, while limiting the amount of toxic matter propagates in the soil.


I have read that hydrolyzing PLA could help achieving this.
I also found threads on disolving it [How to dissolve PLA (polylactic acid)?](https://chemistry.stackexchange.com/questions/83476/how-to-dissolve-pla-polylactic-acid)
But as I am looking for an ecological process, I think I need to stay away from this as the fumes may be very toxic and polluting


Thank you for your help!


