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{|style="float: left;"|{{Language-box|english_link=Urine_Diverting_Dry_Toilet|french_link=Toilettes_sèches_avec_séparation_d’urine|spanish_link=Retrete_Seco_con_Desvio_de_Orina|hindi_link=coming soon|malayalam_link=coming soon|tamil_link=coming soon | korean_link=coming soon | chinese_link=Coming soon | indonesian_link=Coming soon | japanese_link=Coming soon}}|}<small-title /br><!-- table at top of page with logo, picture, Application level, Management level and input-output tables --br>

|style="width:5025%;"|{{santable_short_new|

Input1=Faeces|Input2=Urine |Input3=Anal cleansing waterCleansing Water| Input4= Dry Cleansing Materials |Input5=|Output1=Faeces| Output2=Urine | Output3=Anal cleansing water Cleansing Water | Output4= Dry Cleansing Materials | Output5=|english_link=Urine_Diverting_Dry_Toilet|french_link=Toilettes_sèches_avec_séparation_d’urine|spanish_link=Retrete_Seco_con_Desvio_de_Orina

|[[Image:Urine_diverting_dry_toilet.png |right|300px500px]]

The UDDT toilet is built such that urine is collected and drained from the front area of the toilet, while faeces fall through a large chute (hole) in the back. Depending on the Collection and Storage/Treatment technology that follows, drying material such as lime, ash or earth should be added into the same hole after defecating. Men, as well as women, need to sit while urinating to ensure that the urine is diverted into the correct channel.

===Design Considerations=== '''It is important that the two sections of the toilet are well separated to ensure that a) faeces do not fall into, and clog the urine collection area in the front, and that b) urine does not splash down into the dry area of the toilet. :

Water used for anal cleaning must be kept separate in order a) faeces do not to dilute faeces or pollute fall into and clog the urine with pathogens. This requires a separate facility for anal cleaning. Small amounts of anal cleaning water can be infiltrated. Larger volumes need to be treated (together with grey water) to prevent ground water pollution.collection area in the front, and that

There are also 3-hole separating toilets that allow anal cleansing water to be separated from the b) urine and the faeces does not splash down into a third, dedicated hole. It is important that the faeces remain separate and dry. When area of the toilet is cleaned with water, care should be taken to ensure that the faeces are not mixed with water. '''

There are also 3-hole separating toilets that allow anal cleansing water to go into a third, dedicated basin separate from the urine drain and faeces collection. Both a pedestal and a squat slab can be used to separate urine from faeces depending on user preference. Urine diverting dry toilets can tends to rust most metals; therefore, metals should be made out avoided in the construction and piping of ceramicthe UDDT. To limit scaling, ferro-cementall connections (pipes) to storage tanks should be kept as short as possible; whenever they exist, fibre-enforced materialspipes should be installed with at least a 1% slope, or strongand sharp angles (90°) should be avoided. A pipe diameter of 50 mm is sufficient for steep slopes and where maintenance is easy. Larger diameter pipes (> 75mm) should be used elsewhere, durableespecially for minimum slopes, plastic and painted woodwhere access is difficult. It is important that To prevent odours from coming back up the pipe, an odour seal should be installed at the surface is smooth and hardenedurine drain.

| valign="top" |- Does not require a constant source of water <br>

- Low capital and operation operating costs <br>

- Large scale nutrient recovery is a realistic possibiltypossibility. <br>

| valign="top" |- Prefabricated models not available everywhere <br>- Requires education training and acceptance to be used correctly <br>- Is prone to misuse and clogging with faeces and misuse <br>- The excreta pile is visible <br>

- Men usually require a separate Urinal for optimum collection of urine <br>-Special child seats have to be provided to keep their urine and faeces separate.

===AdequacyHealth Aspects/Acceptance===The UDDT is simple not intuitive or immediately obvious to design and build some users. At first, users may be hesitant about using such materials as concrete it, and wire mesh or plasticmistakes made (e.g. The UDDT design can be altered to suit , faeces in the needs urine bowl) may deter others from accepting this type of specific populations (itoilet as well.eDemonstration projects and training are essential to achieve good acceptance with users. smaller for children, people who prefer For better acceptance of the system and to squatavoid urine in the faeces collection bowl, etcthe toilet can be combined with a Urinal (U.3) They are appropriate for almost every climate, allowing men to stand and urinate.

===Health Aspects / AcceptanceOperation & Maintenance===The A UDDT is not intuitive or immediately obvious slightly more difficult to keep clean compared to other toilets because of both the lack of water and the need to separate the solid faeces and liquid urine. No design will work for everyone and, therefore, some users. At firstmay have difficulty separating both streams perfectly, users which may be hesitant about using it result in extra cleaning and mistakes (emaintenance.g. faeces Faeces can be accidentally deposited in the urine bowl) may deter others from accepting this type of toilet as well. Education section, causing blockages and demonstration projects are essential in achieving good acceptance with userscleaning problems.

===Maintenance===A UDDT is slightly more difficult to keep clean compared to other toilets because All of both the lack of water surfaces should be cleaned regularly to prevent odours and the need to separate minimize the solid faeces and liquid urineformation of stains. For Water should not be poured in the toilet for cleaning. Instead, a damp cloth may be used to wipe down the seat and the inner bowls. Some toilets are easily removable and can be cleaned more thoroughly. No design will work for everyone It is important that the faeces remain separate and thereforedry. When the toilet is cleaned with water, some users may have difficulty separating both streams perfectly which may result in extra cleaning and maintenancecare should be taken to ensure that the faeces are not mixed with water.

Faeces Because urine is collected separately, calcium- and magnesium-based minerals and salts can be accidentally deposited precipitate and build up in pipes and on surfaces where urine is constantly present. Washing the urine sectionbowl with a mild acid (e.g., causing blockages vinegar) and cleaning problems. As well, urine pipes/fittings or hot water can become blocked over time prevent the build-up of mineral deposits and scaling. Stronger (> 24% acetic) acid or a caustic soda solution (2 parts water to 1 part soda) can be used for removing blockages. However, in some cases manual removal may require occasional maintenancebe required.

This An odour seal also requires occasional maintenance. It is a waterless technology and water should not be poured down the toilet. As well, urine tends critical to rust most metals; therefore, metals should be avoided for the construction and piping of the UDDTregularly check its functioning.

* For more information on [http://www.wrcsswm.org.zainfo/downloadssites/report%20listsdefault/web%20rptsfiles/devcoreference_attachments/TT275technologyreviewofuddts18-june-2013-06komplett.pdf Dry Technology Review of Urine Diversion Toilets-diverting dry toilets (UDDTs) Overview of design, operation, management and costs]

* [httpshttp://wiredspace.wits.ac.za/bitstream/handle/10539/11789/ARPL%207019%20-%20FINAL%20RESEARCH%20REPORT%20G%20MATSEBE%205%20DECEMBER%202011.pdf?sequence=1 PERCEPTIONS OF THE USERS OF URINE DIVERSION DRY (UDD) TOILETS IN MEDIUM DENSITY MIXED HOUSING IN HULL STREET, KIMBERLEY]. Johannesburg 2011.  * [http://web.archive.org/web/20150331190748/http://www.wsp.org/hwws-toolkit/hwws-tk-home?utm_source=Newsletter_May_2013&utm_campaign=Wasrag+February+2013Newsletter&utm_medium=email Handwashing with Soap Toolkit]

* Morgan, P. R. (2007). [http://www.ecosanres.org/toilets_that_make_compostpdf_files/ToiletsThatMakeCompost.htm pdf Toilets That Make Compost: . Low-costCost, sanitary toilets that produce valuable compost Sanitary Toilets That Produce Valuable Compost for crops Crops in an African contextContext]. Stockholm Environment Institute, SwedenStockholm, SE. (Provides step-by step instruction on how to build a UDDT using a plastic bucket and how to construct a urine -diverting squat plate) * Morgan, P.R. (2009). [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. * von Münch, E. and Winker, M. (2011). [http://www.susana.org/_resources/documents/default/2-875-giz2011-en-technology-review-urine-diversion.pdf Technology Review of Urine Diversion Components. Overview of Urine Diversion Components Such as Waterless Urinals, Urine Diversion Toilets, Urine Storage and Reuse Systems]. Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, Eschborn, DE.

* Netherlands Water Partnership (NWP) (2006). [httphttps://www.ircircwash.nlorg/pageresources/28448 smart-sanitation-solutions-examples-innovative-low-cost-technologies-toilets-collection Smart Sanitation Solutions. Examples of innovativeInnovative, lowLow-cost technologies Cost Technologies for toiletsToilets, collectionCollection, transportationTransportation, treatment Treatment and use Use of sanitation productsSanitation Products]. NWPNetherlands Water Partnership, The Hague, NetherlandsNL. (Provides country specific data and links for further information.)

* WinbladRieck, UC., von Münch, E. and Simpson-HerbertHoffmann, MH. (20042012). Ecological Sanitation. Stockholm Environment Institute, Sweden. Available: [httphttps://www.ecosanressusana.org www/en/knowledge-hub/resources-and-publications/library/details/874 Technology Review of Urine-Diverting Dry Toilets (UDDTs).ecosanresOverview of Design, Operation, Management and Costs].org] Deutsche Gesellschaft für Internationale Zusammenarbeit (Provides a goodGIZ) GmbH, general overview of different types of UDDTs – see especially page 59Eschborn, DE.)

* General information Winblad, U. and Simpson-Hébert, M. (Eds.) (2004). [http://www.gtzecosanres.deorg/ecosan wwwpdf_files/Ecological_Sanitation_2004.pdf Ecological Sanitation]. Revised and Enlarged Edition.gtzStockholm Environment Institute, Stockholm, SE.de/ecosan]

* Scope, India [http://www.scopetrichy.com/Urine_Diversion_toilet_in_Schoolspdf/UDDT_ECOSAN.asp Urine diverting dry toilet in schoolspdf UDDT Ecosan]