They may well seem to be an ...
Published by Gary Brown, Water Practitioner at Dikubu Water
They may well seem to be an environmentally friendly alternative but when one is confronted with the social and practical issues and risks associated with this application, it does not appear to be sustainable. Two of the biggest challenges I have observed is the lack of thorough consultation with users, or no consultation, and the fact that the scale of the application is not considered. Composting toilets seem to work well for single household remote locations like a holiday cabin somewhere in the mountains, or a remote farm home, etc, but not for densely populated areas desperate for sanitation services with heavy daily usage.
A waterborne system that can produce effluent that is suitable for returning to flushing plumbing to reduce the demand for drinking water quality to service the flush toilet, is in my opinion a lot more appropriate for areas of heavy usage. Solar can be added as some of the systems have little power requirement, and some even function on natural ventilation to achieve aerobic conditions.
I'm happy to discuss the merits further if necessary, drop me an email
Regards