Photo: Nazeer Al-Khatib, AFP

Portable Evaporative Toilets

  • Institution Country: U.S.A.
  • Implementation Country: Uganda
  • Sector: Water and Sanitation
  • Funding Stage: Proof of Concept

Portable, Evaporative Toilets for Drop-In and Distributed Sanitation for Displaced and Urban Communities
by change:WATER Labs Inc.

change:WATER Labs evaporative toiletWhere toilets are not available, sewage accumulates rapidly and removal costs become unsustainable. Providing safe, clean, and dignified sanitation to people in displaced or informal communities, requires that toilets are made available, easily accessible, and preferably in or near the home. This requires new solutions that can fit and operate in non-sewered communities, and no-flush toilets would need to eliminate onsite sewage nearly as fast as it accumulates, without power or plumbing, and at low-cost.

change:WATER Labs Inc. is developing a portable evaporative toilet to extend safe, private sanitation to homes with no power or plumbing. It evaporates more than 95 percent of daily household sewage without added energy or heat. Its core innovation is a low-cost polymer membrane used as a sewage-evaporating collection pouch to “shrink-wrap crap” and convert liquid sewage into clean water vapour. The toilet is compact, keeps things clean, installs anywhere, and is ideal for high density dwellings.