You don't seem to have thought this through. Most importantly, smell is not the only reason you might want to get rid of shit quickly, systematically and far f

You don't seem to have thought this through. Most importantly, smell is not the only reason you might want to get rid of shit quickly, systematically and far from the hands of humans and animals. It is a major carrier of disease. > I am aware that achieving this on an urban scale would be a challenge, but it can certainly be solved..... It probably can - but can it be solved to a degree that gives a better net result than the current system? Water is expensive[1], but so are the trucks required to ship sawdust in and shit out of the urban areas that most people live in (>80% in the US) and the rest of the infrastructure required to safely turn it into compost. 1: In some places. In many places water is really quite abundant. Edit: Also, a cursory reading of https://en.wikipedia.org/wiki/Sewage_treatment https://en.wikipedia.org/wiki/Sewage_treatment suggests that there are several paths for processed sewage to be either, indeed, composted or turned "into fertilizer pellets. This product is then sold to local farmers and turf farms as a soil amendment or fertilizer".