Water Services Trust FundHow to use, empty and dispose content of a

UDDT

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What is UDDT?

04/19/23

Understanding the type of toilets to be emptied

What is UDDT?

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• A urine -diverting dry toilet (UDDT) or a dry toilet is a simple, low-cost, on-site toilet that functions without water and has a divider so that the user, with little effort, can divert the urine away from the faeces.

Faeces vault 1

Urine section 1

Faeces vault 2

How is a UDDT used?

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• Every long call visit should be

accompanied by pouring ash into the vault• Vaults are the section of the toilets where

the faeces are stored• Pouring of ash on the faeces allows it to

dry fast and raises the PH level which kills most of the disease producing agents (pathogens) found in faeces

• Therefore ash always has to be available in the toilet

Vault 1 Vault 2

UDDTs use

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• How to use a UDDT may not be obvious to some users.

• Users may be hesitant to use it because they don’t know how to separate the urine and the faeces

• Education is essential in achieving acceptance

Posters will be available in all the dry toilets

Common mistakes that are made when using a UDDT

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• Careless pouring of ash in the urine hole which can block the urine pipe

• Dumping solid waste such as sanitary towels and diapers (non-biodegradable items) into the faeces chamber.

• Defecating in the urine hole which blocks the urine pipe (a mistake mostly made by children)

Blocked urine pipe

Common mistakes

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• Urinating in the faeces chamber. A mistake mostly made by children and men

• Anal cleansing water directed to the faeces chamber

• Bathing inside the toilet

How should a UDDT be used?

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• Lift the lid of the big hole (faeces chamber). This lid has a handle which indicates that it is in use

• The lid without a handle is not in use• Once you lift the lid with the handle, squat on top of the

big hole• After use, dispose the used tissue or paper in the big

hole

How should a UDDT be used?

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• Put a scoop or a cupful of ash into the big

hole ONLY, no ash should spill on the urine hole/section to avoid blockage

• Replace the lid once you have finished• Please ensure that you aim at the urine

hole whilst urinating. Do not urinate in the big hole.

• Wash your hands with soap and water!

Ash bucket. Ash should be poured in the faeces hole after every long call

How should children use the UDDT? (1)

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• It is the responsibility of the adults to ensure that their children use the toilet properly

• If the child is still using a potty, ensure that you deposit the faeces in the big hole that has a lid with a handle

• If the child is not using a potty, place the child on the urine separating toilet seat (if available)

How should children use the UDDT? (2)

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• If there is no urine diversion seat for children, assist the child to squat of the UDDT plate to ensure that they aim for the urine hole and faeces hole.

• Dispose used tissue in the big hole after use (no diapers should go to the big hole but in the dustbin)

• Wash hands with soap and water after using the toilet

Once the vault is full, what happens? (1)

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• Once the vault is full, the users are requested to cover it with the lid that has no handle. This indicates that it is currently not in use

• The users are taught to ensure that the lid is tight so that it is not opened by mistake! No one is allowed to use the full vault during the treatment period

Once the vault is full, what happens? (2)

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• The users ensure that the full vault has enough ash for drying and leave it to compost for a minimum period of 6 months.

• The longer it stays the better and safer the quality will be for reuse

• the vault may be opened from time to time by the users to monitor the process

• If some sections require a little bit more ash, we advise the users to add the ash

Once the vault is full, what happens? (3)

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• More ash can be added and mixed in with a spade so that it may dry uniformly.

• This can be done also when the Sanitatin Teams begin emptying the vaults

• Wash your hands with soap and water after you have handled the contents of the vaults

How does the content of the vault look like?

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Any risks faced during the emptying of the vaults?

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• Possibility of helminth eggs (worms) transmission since they take a longer time to die off even in hot tropical climates

Ensure that wear your protective equipment (PPEs)and wash your hands with soap and water after emptying

Any risks faced during the emptying of the vaults?

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• Use a shovel and the SaniGo for transporting the UDDT matter.

• After treatment, the dried matter can be used as a soil conditioner in tree crops and flowers.

• If the above is not possible, it can be buried under at least 25 cm on the ground or taken to the decentralised treatment plant (DTF)

• Transportation and Dispoal will be demonstrated during the practical day of this training

What are the risks during disposal?

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• Risks are there if it is removed before the six month period (physical observation: before complete decomposition has taken place).

• The emptiers should always wear protective equipment such as gloves and boots to empty the vaults.

• The dehydrated faeces should only be taken to the decentralised treatment facilities (DTF)

What are the risks during potential reuse?

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• Trees that grow high up are more secure such as bananas, oranges mangoes, maize and millet

• The dried faeces should be worked into the soil rather than distributed into the surface

• Application of treated faeces is safest when applied to fruit trees rather than vegetables or root crops.

What are the risks during potential reuse?

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• If plastics such as sanitary pads have been thrown in the faeces vaults, the vault contents need to be sieved or screened prior to agricultural reuse.

Faeces is a resource!

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• Treated faeces have a high content of organic matter which acts as a good conditioner.

• It contains nitrogen, potassium, and phosphorous and other micronutrients.

• If ash has been used, it provides an additional source of potassium!