Difference between revisions of "Dry Toilet"
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Revision as of 16:32, 19 February 2012
A Dry Toilet is a toilet that operates without water. The Dry Toilet may be a raised pedestal that the user can sit on, or a squat pan that the user squats over. In both cases, excreta (both urine and faeces) fall through a drop hole. Here, a Dry Toilet refers specifically to the device that the user sits or squats over. In other literature, a Dry Toilet may refer to a variety of technologies, or combinations of technologies (especially pits). The Dry Toilet is usually placed over a pit; if two pits are used, the pedestal or slab should be designed in such a way that it can be lifted and moved from one pit to another. The slab or pedestal base should be well sized to the pit so that it is both safe for the user and prevents stormwater from infiltrating the pit (which may cause it to overflow).
ContentsAdequacyDry Toilets are easy for almost everyone to use. Because there is no need to separate urine and faeces, they are often the most physically comfortable and natural option. Pedestals and squatting slabs can be made locally with concrete (providing that sand and cement are available). Wooden or metal molds can be used to produce several units quickly and efficiently. When dry toilets are made locally, they can be specially designed to meet the needs of the target users (e.g. smaller ones for children). Fibreglass, porcelain and stainless steel versions may also be available. They are appropriate for almost every climate. Health Aspects / AcceptanceSquatting is a natural position for many people and so a well-kept squatting slab may be the most acceptable option. Since Dry Toilets do not have a water seal, odours may be a problem depending on the Collection and Storage/ Treatment technology to which it is connected. MaintenanceThe sitting or standing surface should be kept clean and dry to prevent pathogen/disease transmission and to limit odours. There are no mechanical parts and so the Dry Toilet should not need repairs except in the event that it cracks. Movie
Manual - How to build
AcknowledgementsThe material on this page was adapted from: Elizabeth Tilley, Lukas Ulrich, Christoph Lüthi, Philippe Reymond and Christian Zurbrügg (2014). Compendium of Sanitation Systems and Technologies, published by Sandec, the Department of Water and Sanitation in Developing Countries of Eawag, the Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland. The 2nd edition publication is available in English. French and Spanish are yet to come. References and external links
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