|Things to Consider||
There are a number of manufactures of composting toilets throughout the world. Many of these systems are found in and appropriate to developing countries. But cost, shipping, or maintenance may be a concern. Check out the manufacturer websites to see what they offer (there is also lots of useful general information) than compare to the self-built designs provided in the links to technical briefs.
If you have two chambers in one toilet, when one is full it can be closed off to compost for a period of time. If you have only one chamber you will have to provide for the ability for the composting to occur continuously.
Urine can cause problems with the composting process, but diverting it may be an unacceptable behavioral change. Determine if you have the option with the community, then consider the needed adjustments to the system. This is discussed in more detail in the urine diversion page.
Most of the designs are flexible, but you must also consider the materials available to add to the composting process – ash, sawdust, leaves and grasses. This is discussed in more detail in the composting factors page.
A composting toilet can be inexpensive, but this might require more maintenance of the system after it is built. You should consider this into your calculation
You can build it or provide it, but will the community make use of it or of its products?
A raised toilet structure, visible waste, and maintenance requirements may not be culturally appropriate – consider your design carefully.