RAVITA project


Government’s analysis, assessment and research activities: By utilising wastewater we could reduce the use of artificial fertilisers significantly

It is possible to reduce the use of artificial fertilisers by up to a fourth in Finland if we could recycle phosphorus dissolved in wastewater to be treated for fertilising purposes. Phosphorus in wastewater comes mainly from urine. If, at the same time, we could increase recycling of manure’s phosphorus, we would be able to entirely give up phosphorus-containing artificial fertilisers in Finland.

Read the story and watch the video » (in Finnish)

Better nutrient cycle from wastewater with RAVITA – production testing starts 

Using the RAVITA process it is possible to reutilize phosphorus nutrient. The nutrient cycle reduces the use of virgin phosphorus. A demo plant will be built at Viikinmäki's wastewater treatment plant in 2018. The production of phosphoric acid will be tested in the demo plant to optimize the process and calculate cost benefits. 

Watch a RAVITA video produced by RAKI -project   (subtitled in English )

RAVITA has been chosen as Government’s Key Project

At the end of 2016, the Ministry of the Environment announced a call for key project applications where full-scale test targets were looked for, in order to implement treatment of sludge from wastewater treatment plants based on nutrient recycling.

The key project funded by the Ministry of the Environment has been chosen and RAVITA demo plant presented by HSY has been selected as one of the funding targets. With the help of the funding, a pilot plant is being constructed at the Viikinmäki wastewater treatment plant. The pilot plant helps to re-search the end product, i.e. production of phosphoric acid.

See the information bulletin on HSY’s nutrient recovery process as the key project on circular economy in Finland (in Finnish) »

The Ministry of the Environment's decision on granting government funding for the key project (in Finnish) »

RAVITA presented in Maaseudun tulevaisuus magazine (The Rural Future)

Read the story about RAVITA published in Maaseudun tulevaisuus magazine on 21 October, 2016

HSY develops a suitable method for recycling phosphorus in Finland (in Finnish) »