Bjartur Swart, responsible for the STOWA for research into decentralized wastewater treatment, visited a play farm Den Scherpenberg in Rucphen, the Netherlands, together with a photographer. In 2019, Rietland installed an aerated constructed wetland, type Phytoair, for the treatment of the sanitary waste water from the toilets and the canteen. The filter is 45 m² in size and can process a maximum of approx. 5,000 liters per day. In quieter periods, the time the air blower runs is automatically adjusted to save energy.
![Phytoair® system play farm Den Scherpenberg](https://rietland.com/wp-content/uploads/2020-04-29-13.06.54-1024x768.jpg)
Marcel Sommers, owner of Den Scherpenberg, shows the purified wastewater from the Phytoair®
Following the visit, the article below appeared in the magazine “For Info” of the STOWA.
[gview file=”https://rietland.com/wp-content/uploads/STOWA-informatie-76-p16_17.pdf”]
A special feature of the system at Den Scherpenberg is that the drainage does not go to surface water, but to a willow filter that the owner installed himself. Here a large part of the purified water is evaporated and a part infiltrates into the soil.
![Willow filter Den Scherpenberg Rucphen](https://rietland.com/wp-content/uploads/2020-04-29-13.09.12-1-1024x768.jpg)
Willow filter at Den Scherpenberg.