Vuna – a world of ideas

We plan and build your water and sanitation system of the future today. From urban to alpine.

About us

At Vuna, we develop decentralized and circular sanitation systems for remote holiday homes and tiny houses, we plan drinking water and wastewater treatment systems for mountain huts, and we generate innovative solutions for circular water management in urban areas. From total wastewater treatment to greywater recycling and rainwater reuse, Vuna has already implemented several (waste)water systems. We also offer nutrient recycling: with the recycled fertilizer Aurin, on the one hand, and with fecal composting, on the other. In the latter, excrements are converted into humus through worm composting, which can be used as a nutrient-rich soil improver. The product range is complemented by drinking water treatment systems that ensure drinking water quality.

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Take a look at our latest work

Franck Areal Basel

Planning and implementation of complete closed-loop systems for the entire area:

• Greened Facade modules FamoS treat greywater.
• Dry and flushing toilets separate urine.
• Urine becomes Aurin recycling fertilizer processed.

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bluefactory Fribourg

Planning and construction of the greywater recycling system and the urine treatment plant for Aurin recycling fertilizer. Greywater It is treated in a green strip between the buildings and then used for toilet flushing and irrigation. The urine is produced from... Aurin recycling fertilizer in a facility of VunaNexus. The blackwater is filtered through a worm filter by Aneco processed.

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Schlössli-Schüür Kirchdorf

Planning of water cycles and scientific support for the repurposing of the largest historic barn in the Canton of Bern as living space. The water source is... rainwater The treated wastewater is used for irrigation. Implementation by the client. Stalldrang GmbH.

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All our projects

Some key information about us:

  • Vuna was established in 2016 in Dübendorf (Switzerland) as a spin-off from the EAWAG research institute.
  • At present, Vuna has realised more than 150 different projects in 8 countries.
  • Vuna brings together specialists in the field of water treatment and recycling technologies.

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Customers:

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Years in Business

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Projects

Some of our customers

Our own production

Aurin is the world's first urine fertilizer with full approval by the Swiss authorities. The best solution for your vegetables and flowers.

Officially approved as a fertilizer by the Federal Office for Agriculture (→Product register). After an intensive testing phase that began in 2015, Aurin received final approval in 2018.

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Latest news

28.10.2026

Nutrient recovery: Germany is moving forward

The German Conference of Agriculture Ministers is calling for the creation of a legal framework for the use of processed urine and human excrement as fertilizer.

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28.10.2026

Urine recycling: Closing the loop at the same price

A study commissioned by AWEL shows that decentralized urine conversion into fertilizer costs about the same as…

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22.10.2026

According to TIME's list, Aurin is one of the best inventions of 2026.

Aurin was named one of TIME's best inventions of 2026. The technology is based on years of…

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All news

Our Mission: Circular Sanitation Systems

Support us in our mission to implement circular sanitation systems in Switzerland and become a member of VaLoo, the network for circular sanitation systems in Switzerland, consisting of people from research and the private sector, as well as committed private individuals and soon you?

Visit VaLoo website

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