2 plants indexed.
UWWTP Hessenpoort serves Zwolle, Overijssel, Netherlands, treating wastewater for approximately 9,883 people. The plant operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with European standards.
UWWTP Zwolle serves approximately 126,400 people in Zwolle, Overijssel, Netherlands. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.