Dry Urinals

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Dry Urinals
ISH50
March 11th, 2009
Prof. Dr.-Ing. Mete Demiriz
Gelsenkirchen University of Applied Sciences
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
3
Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
4
Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
5
Dry Urinals

• TESTS
• Hygiene test
• Olfactometric test
• Incrustation test
• Economic efficiency

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
6
Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• TYPES
• Traps with a floating layer of sealing liquid
• Mechanically working traps

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• Traps with floating liquid layer
• Ernst, Switzerland
• Sinaqua-Waterless, Europe
• Uridan, Denmark
• No-Flush
• Mc Dry, Germany
• and others

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
9
Dry Urinals

• Traps with floating liquid layer

Sealing liquid
Sealing liquid
Trap of Sinaqua
Outlet to drain
Urine
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals
Sealing liquid Urilock lighter than Urine
Trap of Uridan
Urine
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• Mechanically working traps

Trap of Urimat
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
12
Dry Urinals
Trap of Sphinx
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
13
Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• LONG-TERM TESTING

Collecting drainline 2 inch
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
15
Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
17
Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
18
Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
19
Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
20
Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• LONG-TERM TESTING

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
22
Dry Urinals

• ECONOMIC EFFICIENCY
• Equipment Cost
• Water and Sewage Charges
• Actual Maintenance Cost of Flushed Urinals
• Design and Installation of Water Connection for
  Flushed Urinals

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• ECONOMIC EFFICIENCY
• Actual Maintenance Intervals and Costs for Dry
  Urinals
• Cleaning Costs for Dry Urinals
• Cleaning of nonflushed drainline attached to dry
  urinals
• Prospective Energy Cost

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• CONCLUSION
• Dry Urinals can be operated hygienically if they
  are maintained and cleaned according to
  manufacturers' instructions

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
25
Dry Urinals

• CONCLUSION
• The optimization of dry urinals and new
  techniques leading to the development of new
  traps, have increased the life and extended
  maintenance intervals within the last decade.
  This resulted in a more cost efficient operation
  of dry urinals.

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
26
Dry Urinals

• CONCLUSION
• Contrary to some claims made in many
  publications, urine sedimentation and
  incrustation in the drainlines of dry urinals is
  an inevitable fact.These cannot be removed by
  pouring high amounts of water into the dry urinal.

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
27
Dry Urinals

• CONCLUSION
• A very intense odour develops in the drainlines
  leading away from the dry urinals. A larger
  clearance has to be taken into consideration
  during the design and positioning of the vent
  pipes and the air inlet ducts.

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals

• FURTHER RESEARCH
• This research project is still continuing.We
  are working out methods to avoid the
  incrustations in the drainlines.

Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals
Thank you for your attention
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de
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Dry Urinals
Prof. Dr.-Ing. Mete Demirizmete.demiriz_at_fh-gelsen
kirchen.de