NX Filtration is a global provider of advanced hollow fiber membrane solutions for sustainable water treatment. Our innovative nanofiltration, ultrafiltration and microfiltration technologies help industries, utilities and municipalities improve water quality while reducing energy use, chemicals and environmental impact. With projects and partners worldwide, NX Filtration enables efficient drinking water production, wastewater reuse and industrial process water treatment across the world today.

NX Filtration B.V.

Ostersund facility

NX Filtration has secured its largest order to date, having been selected to supply its Hollow Fiber Nanofiltration (HFNF) technology to the new Minnesgärde drinking water treatment plant in Östersund, Sweden. This will be the world’s largest HFNF-based drinking water plant and marks a landmark breakthrough for advanced water treatment in Europe. The order, secured through a consortium led by OEM partner Purac, is a validation of NX Filtration’s strategy to accelerate commercial growth by partnering with established system integrators in each of its regional markets.

Östersund Municipality has awarded NCC Group to construct the new water treatment facility adjacent to the existing Minnesgärde waterworks in central Sweden. The new facility will meet future requirements for safe, reliable, and climate resilient drinking water production with a capacity to supply approximately 55,000 people.

The construction of the membrane treatment system has been awarded to a consortium led by Purac, together with NX Filtration, Jotem and Wilbers. The project includes multiple advanced treatment barriers and state of the art process technologies, including NX Filtration’s advanced HFNF membrane technology.

A key advantage of NX Filtration’s HFNF technology within the project is its ability to operate without the continuous addition of flocculants, coagulants, or other chemicals during operation. This supports a simplified and low carbon footprint treatment process focused on operational stability, reduced complexity, and long-term plant reliability.

“This project represents a major milestone for both NX Filtration and the European water sector. Utilities are increasingly looking for future-ready treatment solutions that combine strong water quality performance with operational simplicity and reliability. We are proud that our HFNF technology contributes to safe and resilient drinking water production for decades to come.”
Floris Jan Cuypers, CEO of NX Filtration

The new plant reflects a broader Scandinavian movement towards modern multi barrier drinking water systems, driven by increasing attention to microbiological security, PFAS and micropollutant preparedness, operational resilience, and climate adaptation.

Notes to the press release
This is a public announcement by NX Filtration N.V. pursuant to section 17 of the European Market Abuse Regulation (596/2014). This public announcement does not constitute an offer, or any solicitation of any offer, to buy or subscribe for any securities in NX Filtration N.V. The reported data in this press release have not been audited.


About the Minnesgärde waterworks project
The new Minnesgärde water treatment plant is being developed by Östersund Municipality together with NCC Group and is one of Sweden’s most significant drinking water infrastructure investments. The facility is designed to provide robust and future-proof drinking water treatment for the region through advanced multi-barrier treatment technologies and upgraded process infrastructure.

About Purac
Purac is a leading Swedish provider of water, wastewater and biogas treatment solutions. Headquartered in Lund, Sweden, the company designs, builds and services treatment facilities for municipal and industrial customers worldwide. With more than 4,000 completed projects in over 70 countries, Purac has established a strong track record in delivering sustainable and innovative treatment solutions.

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Our Hollow Fiber Nanofiltration (NX Nano) membranes offer the unique combination of a low fouling hollow fiber configuration with the ability to remove organics and salinity (hardness) from water. Other than a strainer or sand filtration, no further pre-treatment is required. We manufacture our membranes with a patented layer-by-layer process, where multiple nano-scale layers are deposited on a membrane support.

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