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Themes > Sustainable infrastructure > Water > Sustainable sanitation - ecosan > Further information > Frequently Asked Questions > UDDTs

Contact person

For further information please contact:
Dr. Elisabeth von Münch
Tel: +49 6196 79-4221
Fax: +49 6196 79-804221
Email: ecosan@giz.de

UDDTs - Questions and answers

What is urine diversion (UD) and urine diversion dehydration (UDD)?
Urine diversion means: keeping urine and faeces separate at the point of excretion.
Urine-diversion dehydration means: keeping urine and faeces separate, and drying of faeces.

Where can I find design drawings for ecosan UDD toilets?
Design drawings can be found in any of the following locations:
  • SuSanA website (under tools and materials)
  • Some of the SuSanA case studies contain design drawings (under case studies)
  • Technical data sheet on Dehydration toilets - Construction plans - selected examples

If you have good design drawings or photos which you would like to share, please send us an email (see contact details on the left side of the page).


Are UDD toilets also used in Muslim countries where water plays a special role in personal hygiene?
Yes, the design of UDD toilets is adaptable to suit the needs of people who use water for their personal toilet hygiene needs instead of toilet paper.

        Contact person

        For further information please contact:
        Dr. Elisabeth von Münch
        Tel: +49 6196 79-4221
        Fax: +49 6196 79-804221
        Email: ecosan@giz.de
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