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Dry Toilet

1,188 bytes added, 21:41, 4 September 2020
References
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'''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.'''
HereIn this compendium, a Dry Toilet dry toilet refers specifically to the device that over which the user sits or squats over. In other literature, a Dry Toilet dry toilet may refer to a variety of technologies, or combinations of technologies (especially pits).
[[Image:dry_toilet.png|thumb|right|150px200px|[[Dry toilet |Dry toilet]], in Mexico (for credits, click the picture)]]
[[Image:slatsanc.jpg|thumb|right|150px|[[Dry toilet 200px|SanPlat]]-type dry toilet. (for credits, click the picture)]]
===Design Considerations=== The Dry Toilet 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). The hole can be closed with a lid to prevent unwanted intrusion from insects or rodents. Pedestals and squatting slabs can be made locally with concrete (providing that sand and cement are available). Fibreglass, porcelain and stainless steel versions may also be available. Wooden or metal moulds can be used to produce several units quickly and efficiently.
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).
{{procontable | proborder="1" cellpadding="5" cellspacing="0" align="none"|-! width="50%" style="background:#efefef;" | Advantages! style="background:#f0f8ff;" | Disadvantages|-| valign="top" |- Does not require a constant source of water.<br> - Can be built and repaired with locally available materials.<br> - Low capital and operating costs.<br> - Suitable for all types of users (sitters, squatters, washers, wipers)| convalign= "top" | - Odours are normally noticeable (even if the vault or pit used to collect excreta is equipped with a vent pipe).<br> - The excreta pile is visible, except where a deep pit is used.}- Vectors such as flies are hard to control unless fly traps and appropriate covers are used.|}
==Adequacy=Appropriateness===Dry Toilets toilets are easy for almost everyone to usethough special consideration may need to be made for elderly or disabled users who may havedifficulty. 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). Because there is no need to separate urine and faeces, they are often the simplest and physically most physically comfortable and natural option.
Pedestals ===Health Aspects/Acceptance=== Squatting is a natural position for many people and so a well-kept squatting slabs can slab may be made locally with concrete (providing that sand and cement are available)the most acceptable option. Wooden or metal molds can be used to produce several units quickly and efficiently. When Since dry toilets are made locallydo not have a water seal, they can odours may be specially designed to meet a problem depending on the needs of the target users (e.g. smaller ones for children). Fibreglass, porcelain Collection and stainless steel versions may also be available. They are appropriate for almost every climateStorage/Treatment technology connected to them.
==Health Aspects / Acceptance=Operation & Maintenance===Squatting is a natural position for many people The sitting or standing surface should be kept clean and dry to prevent pathogen/ disease transmission and so a well-kept squatting slab may be to limit odours. There are no mechanical parts; therefore, the dry toilet should not need repairs except in the most acceptable optionevent that it cracks.
Since Dry Toilets do not have a water seal=== Manuals, videos, odours may be a problem depending on the Collection and Storage/ Treatment technology to which it is connected.links ===
* [http://www.youtube.com/watch?v==Maintenance==The sitting or standing surface should be kept clean and dry to prevent pathogen/disease transmission and to limit odoursGLJj8RB02NY Dry toilet] Demonstration of SanPlat system.
There are no mechanical parts and so the Dry Toilet should not need repairs except in the event that it cracks* [https://sanplat.com/ SanPlat-type dry toilets].
== Movie ==* [https://www.wsp.org/hwws-toolkit/hwws-tk-home Handwashing with Soap Toolkit]
===References===* Brandberg, B. (1997). [httphttps://www.youtubeircwash.comorg/watch?v=GLJj8RB02NY Dry toiletresources/latrine-building-handbook-implementing-sanplat-system Latrine Building. A Handbook for Implementation of the Sanplat System] Demonstration of SanPlat system.Intermediate Technology Publications, London, UK. pp. 55-77. (Describes how to build a squatting slab and the moulds for the frame, footrests, spacers, etc.)
== * CAWST (2011). [http://https://sswm.info/sites/default/files/reference_attachments/CAWST%202011%20Introduction%20to%20Low%20Cost%20Sanitation.pdf Introduction to Low Cost Sanitation. Latrine Construction. A CAWST Construction Manual - How to build ==.] Centre for Affordable Water and Sanitation Technologies (CAWST), Calgary, CA. (Very detailed construction manual for different slab designs)<br>
* Morgan, P. R. (2007). [http://www.sanplat.com/sharewar.htm http://www.sanplatecosanres.comorg/pdf_files/sharewarToiletsThatMakeCompost.pdf Toilets That Make Compost.htmLow-Cost, Sanitary Toilets That Produce Valuable Compost for Crops in an African Context] Manual for building SanPlat. Stockholm Environment Institute, Stockholm, SE.] (Excellent description of how to make support rings and squatting slabs (pp. 7-type dry toilets35) and pedestals (pp.39-43) using only sand, cement, plastic sheeting and wire)<br>
==Acknowledgements=={{* Morgan, P. R. (2009). [http:Acknowledgements Sanitation}}//http://www.ecosanres.org/pdf_files/EcologicalToilets-PeterMorgan-Mar2009.pdf Ecological Toilets. Start Simple and Upgrade from Arborloo to VIP]. Stockholm Environment Institute, Stockholm, SE.]<br>
==References and external links==* BrandbergReed, B. (19972012). [httphttps://developmentbookshopwedc-knowledge.lboro.ac.comuk/resources/booklets/product_infoG005-Latrine-slabs-online.php?products_id=299 pdf An Engineer’s Guide to Latrine Building. A Handbook for Implementation of the Sanplat SystemSlabs]. Intermediate Technology PublicationsWEDC, Loughborough University, Leicestershire, LondonUK. pp 55–77 (Describes how to build a squatting slab Comprehensive guide with key information and the moulds checklists for the framedesign, footrests, spacers, etc.construction and maintenance)<br>
* Morgan, P. (2007). [http://www.ecosanres.org/toilets_that_make_compost.htm Toilets That Make Compost: Low-cost, sanitary toilets that produce valuable compost for crops in an African context]. Stockholm Environment Institute, Sweden. (Excellent description of how to make support rings and squatting slabs (pages 7–35) and pedestals (39–43) using only sand, cement, plastic sheeting and wire.) Available: www.ecosanres.org * Squatting plates [http://www.sanplat.com www.sanplat.com ]===Acknowledgements===* Netherlands Water Partnership (NWP) (2006). [http{{://www.irc.nl/page/28448 Smart Acknowledgements Sanitation Solutions. Examples of innovative, low-cost technologies for toilets, collection, transportation, treatment and use of sanitation products]. NWP, Netherlands. (Provides country specific data and links for further information.)}}
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