Compost Toilet - for the Garden and why not ... also Home
Some years ago I met a person who had a self-built compost-toilet. It was just a bucket with a box around and a toilet seat mounted on that wooden box. She always had a soil/dry leave mix in another bucket. She put a first layer of soil in the bucket and everytime one used the toilet some more soil was put on top. This went on a separate compost pile in her garden to be left for two years, So there were three piles. Acutally also the Aztecs (if I remember well - or another people) used human made fertilizer.