Overview
UWWTP Spijkenisse Allemanspolder serves 73,600 people in Spijkenisse, Zuid-Holland, Netherlands. The plant is part of the national wastewater infrastructure under EU Urban Waste Water Treatment Directive.
UWWTP Spijkenisse Allemanspolder is a municipal wastewater treatment plant located in Spijkenisse, in the province of Zuid-Holland, Netherlands. It serves a population of approximately 73,600, placing it in the medium-to-large agglomeration category under EU classification. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving between 10,000 and 150,000 population equivalents are required to provide secondary treatment, with tertiary treatment mandated in sensitive areas. The Netherlands designates many water bodies as sensitive to eutrophication, so advanced treatment is common. The plant discharges treated effluent into the local water system, which ultimately drains into the North Sea via the Nieuwe Maas and the Rhine-Meuse-Scheldt delta. This region supports diverse aquatic life and is an important ecological corridor for migratory fish and bird species.
Environmental context
The plant's treated effluent enters the local polder water system, which flows into the Oude Maas and then the Nieuwe Maas, part of the Rhine-Meuse delta. This delta is a critical ecological zone supporting diverse aquatic habitats and migratory bird populations. The North Sea receiving waters are influenced by nutrient inputs from the Rhine basin, making advanced treatment important for preventing eutrophication.
Frequently asked questions
The plant is located at Allemanspad in Spijkenisse, in the municipality of Nissewaard, province of Zuid-Holland, Netherlands.
The plant serves approximately 73,600 people, classifying it as a medium-to-large agglomeration under EU definitions.
The treated effluent is discharged into the local polder water system, which flows into the Oude Maas and eventually the North Sea via the Rhine-Meuse delta.
As a Dutch plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 10,000 PE and tertiary treatment in sensitive areas.
In the Netherlands, plants of this scale typically provide secondary biological treatment with nutrient removal (nitrogen and phosphorus) to meet stringent water quality standards for the sensitive North Sea environment.
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