project

Aarhus ReWater

The municipality of Aarhus (Denmark), because its population is growing annually by 5000 people, faces the challenge of both creating a cleaner harbour and bay and increasing the capacity of wastewater treatment plants. The current wastewater treatment plants (WWTPs) in Marselisborg, Åby and Viby are too small and offer no possibility of enlargement. Aarhus Water, the local water utility which provides both drinking water and wastewater management, is responsible for this project. KWR Water Research Institute is playing a key role by providing scientific expertise and innovations to meet the objectives of Aarhus ReWater.

Treating wastewater and recovering resources

Aarhus ReWater will not only treat the wastewater, but will also recover valuable resources like energy and nutrients from the wastewater. This project sets new standards in the area of sustainability and the circular economy. By 2031, the emissions of nitrogen are expected to drop by 25% and those of phosphorus by 40%, which will contribute to a healthier aquatic environment in the bay of Aarhus.

Space for urban development

The consolidation of the treatment facilities offers prospects for urban development. The new plant will be built close to the current Marselisborg location and, thanks to its multi-functional design, will contribute to the liveability of the surrounding area.

KWR Water Research Institute is a crucial partner in the consortium and contributes scientific knowledge and innovations to realise the ambitious objectives of Aarhus ReWater. KWR’s research focuses on wastewater treatment, energy efficiency, and the recovery of valuable resources. Together with Envidan and Royal HaskoningDHV, KWR is working on the development of a future-proof and sustainable installation.

Aarhus Rewater

Aarhus ReWater will treat the wastewater, and recover valuable resources like energy and nutrients from the wastewater. This project sets new standards in the area of sustainability and the circular economy..

Innovative and learning system

Aarhus ReWater will be a ‘learning’ installation, which can be continuously adapted to new technological developments. The project functions as an example of the circular economy for Aarhus Water, with the objective of achieving energy- and CO2-neutrality by 2030.

Aarhus Water, the Danish water utility which provides both drinking water and wastewater management, has commissioned this project. The utility is geared to sustainable water solutions and is involved in local and international projects dedicated to climate adaptation, water management and the circular economy.