DWD - Duurzame Watervoorziening Delfzijl - Water Reuse and Biogas Production - Reference

Project’s context & challenges

Duurzame Watervoorziening Delfzijl (DWD) is a landmark project in the Netherlands, enabling large-scale industrial transition to alternative water sources. Led by North Water, the initiative provides industrial water from surface water via a treatment facility in Garmerwolde. Nijhuis Saur Industries (NSI) and Econvert Water & Energy contributed significantly with an anaerobic wastewater treatment system and a modular demineralized water (demiwater) installation. The project addresses the growing pressure on drinking water resources and supports sustainable industrial operations in Delfzijl

Econvert EGSB reactor for anaerobic industrial wastewater treatment

Up to 10.000 m3 / day

Biogas capacity

325 m3/hour

Water treatment capacity

Customer benefits

Enables large-scale use of industrial water from surface water

Produces ultrapure demiwater for hydrogen production and industrial use

Generates up to 10,000 m³/day of biogas from wastewater

Modular design allows future expansion

Reduces dependency on drinking water and supports circular water use

Solution

NSI and Econvert delivered a comprehensive solution including anaerobic wastewater treatment and a modular demiwater installation. The demiwater system upgrades industrial water to ultrapure quality (<1 µS/cm), suitable for boiler feed and green hydrogen production. The modular setup includes separate containers for UF, RO, membrane degassing, and EDI, allowing off-site construction and rapid deployment. The Econvert-EGSB® treats high-organic wastewater, producing biogas that is desulfurized using Econvert-Dsulph® technology. The biogas is upgraded for use as green gas. The system is designed for scalability and future industrial expansion.