One of the problems with poop as fertilizer is the presence of heavy metals. This is a serious issue in industrial cities Wash DC because it has no heavy industry has poop very low in heavy metals and so makes good fertilizer
There was a project called Dano about 25 years ago set up in DC to convert sewage to fertilizer. It was abandoned after local contractors sabotaged it as a threat to their business
” Wash DC because it has no heavy industry has poop very low in heavy metals and so makes good fertilizer”
A pretty high percentage of the DC locals I’ve spoken with appear to have eaten large amounts of lead paint chips in their youth.
Just sayin’...