Portfolio

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.

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.

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.

Chuderboden

Planning the water cycle on the permaculture farm. The purified Greywater It serves for irrigation. This ensures that the farm always has sufficient water resources, even during long dry periods.

La Bistoquette

In the urban settlement of La Bistoquette, composting toilets are used to separate waste streams and create cycles for wastewater. urine, solids, Gray- and rainwater Closed. A pioneering project for the circular settlements of the future.

Period: 2021 – 2025
Technology: Urine treatment, Plant filter
Client: Coopérative Équilibre
Location: Plan-les-Ouates GE

ESA main building

Planning of separate collection and treatment of urine in the new ESA (European Space Agency) headquarters in Paris.

Period: 2018 – 2025
Technology: Urine treatment
Client: ESA
Location: Paris

Gloria Coworking

Vuna designed and installed a dry toilet system for a coworking space, demonstrating that a waterless alternative is also suitable for urban spaces.

Period: 2022
Technology: Dry toilets
Client: gutundgut gmbh
Location: Lenzburg AG

Martinsmadhütte SAC

Planning of a worm and plant filter for the treatment of the total wastewater of a mountain hut.

Period: 2021 – 2022
Technology: Grease separator, Worm/substrate filter, plant filter
Client: SAC Randen Section
Location: Glarus South GL

Chamanna Cluozza

Planning of a worm and plant filter for the treatment of total wastewater from a cabin in the national park.

Period: 2020 – 2022
Technology: Grease separator, Worm/substrate filter, plant filter
Client: Swiss National Park
Location: Zernez GR

Lidernenhütte SAC

Planning and construction supervision of a non-electric trickling filter system for Treatment of the total wastewater as well as composting basins for the treatment of sewage sludge.

Period: 2022 – 2024
Technology: Trickling filter, grease separator, sludge treatment, substrate filter, worm/substrate filter
Client: SAC Mythen Section
Location: Sisikon UR

Residential building in Solothurn

Planning and construction supervision of a drinking water treatment plant, worm and plant filters for Greywater treatment and dry toilets. The water and toilet system is completely self-sufficient.

Period: 2022 – 2025
Technology: Worm/substrate filter, plant filter, Dry toilets, Drinking water
Client: Private
Location: Winznau SO

Zero Waste Space

Planning and construction of plant filters, dry toilets, and drinking water treatment systems to close water cycles in a modular, sustainable construction project.

Period: 2020 – 2023
Technology: Plant filter, Dry toilets, Drinking water
Client: Muthesius Academy of Fine Arts
Location: Kiel DE

Täschhütte SAC

The Sanisphère dry toilet facility is maintained by Vuna.

Period: Since 2022
Technology: Dry toilets, grease separator
Client: SAC Section Uto
Location: Täsch VS

Residential house in Neuchâtel

Planning of a vermi- and plant filters for the treatment of total wastewater from a residential building.

Period: 2021 – 2024
Technology: Worm filter, plant filter, worm/substrate filter
Client: Private
Location: Narrow NE

Leutschachhütte SAC

Planning and construction supervision of the decentralized small sewage treatment plant with vermi- and trickling filters in underground tanks.

Period: 2022 – 2024
Technology: Trickling filter, grease separator, vermi-/substrate filter
Client: SAC Section Zimmerberg
Location: Gurtnellen UR

Holiday home in the Bernese Oberland

Total wastewater treatment for a holiday home at 1805 m above sea level using a vermifilter and plant filter.

Period: 2023
Technology: Worm filter, plant filter
Client: Private
Location: St. Stephan BE

Maiensäss in Graubünden

Planning and construction supervision of the wastewater solution for the replacement building of a remote holiday home at 1350 meters above sea level. Waterless urine separating toilet with barrel filling of the solids; planted carbon filter for Greywater and urine.

Period: 2021 – 2023
Technology: Plant filter, Dry toilets
Client: Private
Location: Untervaz GR

Blüemlisalphütte SAC

The filter system provides a reliable source for drinking water, making helicopter flights to supply bottled water superfluous. Dry toilets have also been installed to save even more water.

Period: 2020 – 2024
Technology: Dry toilet, grease separator, Drinking water
Client: SAC Blüemlisalp Section
Location: Blüemlisalp BE

Hohganthütte SAC

Planning & construction of a dry toilet system with urine & grey water treatment for the Hohganthütte SAC.

Period: 2018 – 2020
Technology: Worm/substrate filter, Dry toilets
Client: SAC Emmental Section
Location: Habkern BE

Oberes Brüggli mountain restaurant

Planning and integration of a decentralised small sewage treatment plant consisting of a vermifilter and a plant substrate filter.

Period: 2018 - 2022
Technology: Vermi-/substrate filter, plant filter, grease separator
Client: Jowissa AG
Location: Selzach SO

Phytotiny for the Freyja

Planning and construction of our mobile wastewater treatment garden Phytotiny for the purification of grey water in the Freyja (mobile micro-living form of Wohnwagon). In co-operation with Aquatiris.

Period: 2019
Technology: Plant filters, dry toilets
Client: Private
Location: Münsterlingen TG

Chamanna da Grialetsch SAC

Consulting & planning of a dry toilet system with urine & grey water treatment for the conversion of the Grialetschhütte SAC, as well as installation of an ultrafiltration system for drinking water treatment.

Period: 2020 – 2021
Technology: Dry toilets, trickling filters, sludge treatment, grease separators, drinking water
Client: SAC Davos Section
Location: Zernez GR

Votre cercle de vie

Complete water and nutrient recycling with our urine recycling technology, vermicomposting and grey and rainwater treatment. An extraordinary project that combines agriculture and tourism.

Period: Since 2023
Technology: Vermi-/substrate filter, trickling filter, grease separator, drinking water, reuse
Client: Fondation Esprit Ensemble
Location: Château-d'Oex VD

KREIS House

Planning & construction of a dry toilet system and drinking water treatment from rainwater for the ZHAW circulation house.

Period: 2021
Technology: Dry toilets, trickling filters, drinking water
Client: Synergy Village, ZHAW Wädenswil
Location: Feldbach ZH

Geneva Agricultural School

Fertilisation of various vegetable and berry crops in a vertical hydroponic system with Aurin, Vuna's recycled fertiliser made from urine.

Period: 2019 – 2020
Technology: Urine treatment
Client: École d'horticulture de Lullier
Location: Lullier GE

Wildhorn Hut SAC

Vermicomposting at the Wildhornhütte (2303 metres above sea level). Planning the conversion of the first Sanisphère conveyor belt toilet system (1999) from bag filling to vermicomposting.

Period: 2018 – 2019
Technology: Dry toilets
Client: CAS section Moléson
Location: Lenk BE

Phytotiny in Bürchen

Planning and construction of our Phytotiny treatment garden for treating greywater from a residential building in Valais. The treated water is reused for watering the garden.

Period: 2021
Technology: Plant filter
Client: Private
Location: Bürchen VS