Facts & Figures

 ClientWaterschap Scheldestromen
 LocationBreskens, The Netherlands
 Operation Start2019
 Project TypeGreenfield Brownfield Retrofit
 Process ConfigurationPre-treatment + Nereda
 Nereda Design Capacity:
  • Dry Weather Flow4 MLD
  • Peak Flow1,020 m3/h
  • PE28,167 PE (PE = 60 gBOD/d)


Breskens is a harbour town in the province of Zeeland, in the south-western Netherlands.


The existing wastewater treatment plants at Breskens and Groede in The Netherlands did not meet the stringent new environmental requirements for discharge limits. The plants needed to be upgraded, to ensure they could continue to serve the needs of 28,000 people equivalent (PE).


The Dutch Water Authority Scheldstromen chose to upgrade the purification system at Breskens, using Nereda® technology. Nereda is an aerobic wastewater treatment technology that purifies wastewater through an aerobic granular biomass process, producing high quality final effluent, suitable for environmental discharge or irrigation. The system requires fewer chemicals and a much smaller footprint compared to conventional technologies.

In addition to installing this technology, Scheldstromen decided to increase the amount of wastewater to be treated at Breskens and constructed two new sewage pumping stations at the site. This upgraded facility replaces the existing wastewater treatment plant as well as the existing plant at neighbouring Groede. Nereda® WWTP Breskens


Research revealed that installing Nereda technology and building new pumping stations at Breskens was far more cost effective than renovating and maintaining both older plants. Construction of the new Nereda plant at Breskens began in Autumn 2017 and the site was commissioned in 2018. The daily average flow is 3,520m³/day with a peak flow of 1,020m³/h. Royal HaskoningDHV was responsible for the design, technology and start-up of the new facility.

Nereda® WWTP Breskens


Nereda® Breskens, The Netherlands in brief