Lemmerweg Oost, Sneek

In 2005, a demonstration project started in the Lemmerweg Oost neighbourhood in Sneek, in which a number of new purification technologies were developed, tested and applied by Desah.
Thirty-two rental houses have now been fitted with a system for decentralised sanitation and reuse of wastewater and waste.

A characteristic feature here is separate collection, transport and treatment of two waste streams. The slightly polluted wastewater from showers, washing machines and kitchens (so-called 'grey water') is thus not additionally polluted by the highly polluted toilet water (so-called 'black water') and is therefore easy to treat.
Using innovative technologies, black water is also treated, with CO2-emissions and energy consumption are reduced by as much as 50% compared to conventional systems.
The process also releases 'green' biogas that can be used to partially power the connected homes. Nitrogen and phosphate -valuable nutrients- are recovered from the wastewater for reuse.

Finally, thanks to the vacuum system, less water is consumed for toilet flushes.

Project partners:

  • Municipality of Sneek
  • STOWA
  • Wageningen University
  • Wetterskip Fryslan
  • De Wieren housing foundation
  • Accola housing foundation

Activities Desah:

  • Process design
  • Technology development
  • Supplier
  • Management and maintenance

Lemmerweg is part of the Run4Life demo site Sneek.

Desah Sneek Consulting White
Desah Sneek Design White
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Desah Sneek Management White