PWNT

Who We Are

PWNT is a technology and innovation center within Nijhuis Saur Industries (NSI), dedicated to advancing drinking water treatment through proven, high-performance solutions. As part of NSI, we are uniquely positioned to combine deep technical expertise with local implementation support, delivering scalable technologies that meet the needs of utilities around the world.

Our origins lie in the Dutch water utility PWN, where more than 100 years of operational experience laid the foundation for a strong culture of innovation. PWNT’s technologies were developed through extensive R&D and full-scale validation in close collaboration with utilities, universities, and global technology partners.

Today, our solutions are implemented in award-winning drinking water facilities in the Netherlands, the United Kingdom, Switzerland, and Singapore. Headquartered in the Netherlands, PWNT supports utilities globally, from research and pilot to plant, with robust, efficient, and sustainable treatment solutions.

Advanced, Flexible Solutions for Water Treatment

PWNT offers a modular portfolio of advanced technologies, developed to address today’s most critical water quality and treatment challenges. Each solution is field-proven, scalable, and adaptable to a wide range of water sources and infrastructure needs.

Municipal

Flocculation-coagulation – ILCA®

Drinking water

In-Line Coagulation and Adsorption ILCA® is a compact in-line coagulation and adsorption process developed by PWNT to simplify and optimise pre-treatment upstream of advanced (...)

Membrane – CeraMac®

Drinking water

CeraMac® is an innovative and cost-effective ceramic membrane filtration solution, designed to provide high-performance, sustainability, and robustness to water treatment processes. (...)

Integrated Solutions

PWNT technologies are designed to perform independently or as part of a powerful, integrated solution. For example, combining SIX® and ILCA® improves pretreatment performance and reduces fouling, making membrane filtration more efficient. This modular, flexible approach allows utilities to optimise performance based on specific source water and infrastructure.

End-to-End Support for Water Utilities

PWNT provides full lifecycle support, from R&D and piloting to full-scale implementation and after-sales services. We collaborate with utilities, engineers, and technology partners to validate solutions, optimise designs, and ensure successful long-term operation.