a unit that uses little or no water, little or no electricity, and turns biological waste into valuable compost

a waterless toilet designed to compost wastes deposited into the receptacle

Collects human waste in an underground yet accessible container without the use of flushing water. . Fans draw air through the composting chamber to evaporate liquids, provide air for the biological breakdown of wastes and remove odours. The accumulated waste decomposes over time and the composting chamber is emptied when filled. Some composting systems use worms to speed up decomposition. The decomposed waste can be used as fertiliser.

A self-contained toilet that use the process of aerobic decomposition (composting) to break down feces into humus and odorless gases

Composting toilets use biological processes to deal with the disposal and processing of human excrement into organic compost material.