The Evides Den Hoorn NEREUS demonstration project is a test installation for the recovery of water, nutrients and energy from wastewater.

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Wastewater…that doesn’t sound very nice. But wastewater contains lots of valuable components that can be re-used for all kinds of things. Which means you need fewer new materials. Which contributes to less waste. That’s why at Evides Industriewater we undertake research to recover as much of this value as possible out of our wastewater. We do this with all kinds of innovative technology.

Here’s how this works.

First filtering

Under tension

Miniscule particles

The final touch

Video: Nereus


Within NEREUS there are five demonstration projects. As well as the Evides Industriewater pilot project in Den Hoorn, there are demonstration projects in Belgium (one in Ghent and one in Antwerp), in the north of France and in the UK.

There are also partners involved to provide knowledge that is needed for the pilot project: University of Portsmouth, HZ University of Applied Sciences and VITO. These partners support by monitoring the demonstration projects and developing tools and strategies with other partners. This provides insights for future projects to stimulate implementation of the technologies. With a focus on recovering energy, water and nutrients.

Local partners

Local partners involved in the Evides Industriewater pilot project in Rotterdam include: City of Rotterdam; Delfland Water Authority; Schieland & Krimpenerwaard Regional Water Authority; Hollandse Delta Water Authority and Logisticon Water Treatment BV.


David MoedPaula van den BrinkVincent Eckhardt
Team lead Process & TechnologyProject lead/Process EngineerProcess Engineer

Tessa SteenbakkerSalah AlzuhairyRuben Kok
Process EngineerProcess EngineerProcess Engineer

About the project

The Evides Den Hoorn NEREUS demonstration project is a test installation for the recovery of water, nutrients and energy from wastewater. The wastewater is processed in various steps to produce irrigation water and recover nutrients. Also various techniques will be used to extract energy from the water. The Evides Industriewater pilot project is located at the wastewater treatment plant Harnaschpolder in Den Hoorn.

This research is part of the European NEREUS project. NEREUS aims to increase the reuse of resources, water and energy from wastewater by boosting the adoption of technologies in urban areas.

Around Europe, the conviction grows that future arrangements for the treatment of wastewater should be based on the principles of a circular economy. Although the technology is available, we still notice that decision makers are hesitant to implement the technology due to the lack of practical evidence. Delivering this evidence to stimulate the use of this technology is one of the objectives of the European Interreg 2-Seas-project NEREUS (‘New Energy and Resources from Urban Sanitation’).

This project has received funding from the Interreg 2 Seas programme 2014-2020 co-funded by the European Regional Development Fund. You can find more information at: