Andijk III Water Treatment Plant (PWN) - Reference

Project’s context & challenges

The Andijk III Water Treatment Plant was designed to treat 120 million liters of surface water per day from the IJsselmeer. The project was commissioned by PWN, the drinking water utility of North Holland, and was driven by the need for a more sustainable and effective pre-treatment system to ensure high water quality while reducing environmental impact and energy consumption.

In operation since 2014, the plant required the integration of advanced technologies to:

Remove a wide range of trace contaminants, including dissolved organic carbon, pharmaceuticals, and pesticides.
Minimize reliance on chemicals and reduce the environmental and operational footprint.
Ensure the system’s long-term reliability, scalability, and compatibility with existing and future infrastructure.

Key figures

CeraMac® C90

5000

m³/hour

120

MLD

MGD

Customer benefits

Superior Water Quality for End Consumers

Advanced multi-barrier treatment ensures the removal of turbidity, micro-pollutants, and pathogens, delivering consistently high-quality drinking water.

Lower Environmental Impact & Sustainability

Chemical use is significantly reduced, leading to less sludge generation and a lower environmental footprint.

Decreased Energy Consumption (Cost Efficiency)

The system achieves up to 30% energy savings compared to traditional treatment technologies, reducing operational costs.

Reliability of the System

The use of durable ceramic membranes—with a lifespan exceeding 20 years—combined in a modular setup ensures long-term performance and simplified maintenance.

Solution

PWNT provided a sustainable, high-performance pre-treatment solution tailored to the needs of the Andijk III facility. The system integrates several advanced technologies, including suspended ion exchange (SIX®) for the removal of natural organic matter and targeted micro-pollutants, and a robust ceramic membrane filtration stage using 10 CeraMac® C90 vessels. In this application, the membranes operate without the need for chemical cleaning-in-place (CIP), further reducing chemical use and operational complexity.

Combined with the existing ultraviolet (UV/H₂O₂) and granular activated carbon (GAC) treatment steps, the result is a robust and sustainable water treatment process. The full system works in harmony with the existing infrastructure, maximizing reliability and efficiency while delivering safe, high-quality drinking water to the region.

Discover our solutions

Municipal drinking water

Membrane – CeraMac®

Drinking water

Ceramic Membrane Microfiltration System CeraMac® is an innovative and cost-effective ceramic membrane filtration solution, designed to provide high-performance, sustainability, (...)