Spreading human waste onto crops may not sound appealing, but a multi-million-dollar Icon Water scheme is hoping to turn Canberra's sewage into a valuable farming product.
And if you want to try it at home and can legally light a small fire, try the “cone pit method”. You can scale it down as well as up like the following article:
Wondering what the hell is biochar? I came across this on Mastodon the other day, it was a decent overview:
https://urbanwormcompany.com/guide-biochar-101-introduction/
And if you want to try it at home and can legally light a small fire, try the “cone pit method”. You can scale it down as well as up like the following article:
https://pacificbiochar.com/how-to-make-biochar-with-only-a-match/