Overview
UWWTP LISSE is a municipal wastewater treatment plant serving Lisse, Zuid-Holland, Netherlands. It treats wastewater from a population equivalent of 22,267 under the EU Urban Waste Water Treatment Directive.
UWWTP LISSE is a municipal wastewater treatment plant located in Lisse, Zuid-Holland, Netherlands. The plant serves a population equivalent of 22,267, placing it in the medium agglomeration category under EU regulations. It is situated in the Poelpolder area, a low-lying polder landscape typical of the Dutch coastal region. As a plant in the Netherlands, UWWTP LISSE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations between 10,000 and 150,000 population equivalent, the directive requires secondary treatment as a minimum, with more stringent treatment in sensitive areas. The Netherlands designates many water bodies as sensitive, often requiring tertiary treatment for nutrient removal to protect the North Sea from eutrophication. The plant's treated effluent is discharged into local waterways that ultimately drain into the North Sea via the Rhine-Meuse-Scheldt delta. This region supports diverse aquatic life and is an important ecological corridor. The plant plays a key role in maintaining water quality in the densely populated and agriculturally intensive province of Zuid-Holland.
Environmental context
UWWTP LISSE discharges into the local polder water system, which drains into the Rhine-Meuse-Scheldt delta and eventually the North Sea. The North Sea is a productive marine ecosystem supporting fisheries and migratory bird populations. Nutrient loading from wastewater can contribute to eutrophication, so treatment standards in the Netherlands are stringent to protect these downstream waters.
Frequently asked questions
UWWTP LISSE is located in Lisse, Zuid-Holland, Netherlands, in the Poelpolder area.
UWWTP LISSE serves a population equivalent of 22,267, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into local polder waterways, which flow into the Rhine-Meuse-Scheldt delta and ultimately the North Sea.
As a plant serving over 10,000 people, UWWTP LISSE must comply with the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum, with more stringent nutrient removal in sensitive areas like those in the Netherlands.
In the Netherlands, plants serving 10,000-150,000 people typically provide secondary treatment with nutrient removal (tertiary treatment) to protect sensitive water bodies from eutrophication, in line with national implementation of the EU directive.
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