Composting toilets- hygienic option in an emergency

Interesting report on use of composting toilets in an emergency situation and what was learnt from Christchurch earthquakes. It is a bit of a read but key finding:

 "The trial demonstrated that households and workplaces could safely and hygienically use a compost toilet exclusively for a month. Compost toilets therefore should be promoted as a viable toilet option in an emergency where sewerage systems are disrupted."

 https://www.wremo.nz/assets/Library/Reports/Compost-Toilet-Trial-Report.pdf