We *really* have a sawdust toilet that has the stuff compost outside. The only smell is for a few seconds when the pail is dumped in the barrel....and it's not as bad as you might think ;-)
Our toilet is in a wooden cabinet with an air pipe to
the outside. Whenever someone poops, that is covered with sawdust. In the past
we have also used coffee bean hulls, shredded newspaper, dirt and leaves.
Whatever is used should be high in carbon. Sawdust and planer shavings are
free and look nice.
Whenever the 5 gallon bucket is full of pee, poop, toilet paper and shavings,
the bucket is taken outside to a 55 gallon barrel and dumped in. It takes one
or two years to become odorless, wonderful compost. At that point the barrel
is only about one third full. We use this compost to fertilize the wildflowers
on our roof and the trees in our orchard. I'd rather not use it on food....although it
looks like it would be fine. We probably have a dozen barrels for this use.
