PARTNER IN WATER SUPPLY

PWNT is wholly owned by Nijhuis Saur Industries (NSI). Through its inception as a daughter of PWN it valorized the utilities’ 100 years of experience to develop innovative technologies. Now as a subsidiary of NSI, it is in an improved position to bring those technologies to utilities worldwide. Our extensive R&D programmes have led to the development of efficient and sustainable solutions in water treatment based on suspended ion exchange, ceramic membrane applications and advanced oxidation, applications that can be used for a wide variety of water sources.

All our solutions offer lower life cycle costs, greater efficiency and much lower environmental impact. We work closely with our clients to create optimal results and strongly believe in partnering with highly recognized universities and globally respected companies. PWNT is located in the Netherlands and Singapore.

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Featured News

World Water Day 2024

#Water : We drink it, we cook with it, we swim in it, we manufacture with it, we clean with it, we heal with it. Water impacts us in every aspect of life, and must never…

Sebastiaan Ackermans, Mechanical Engineer, PWNT

PWNT welcomes Sebastiaan Ackermans, who joined us as a Mechanical Engineer on 18 July 2023. Sebastiaan has a Bachelor’s degree in mechanical engineering and a Master’s degree in Biomechanical Design from Delft University of Technology. His…

PWNT welcomes Peter Markus as new COO

Peter Markus graduated from TU Delft with a Bachelor’s degree in Civil Engineering and a Master’s degree in Offshore Engineering. In the early years of his career, he worked in various engineering departments and the…

Richard van Daalen, PWNT

Richard van Daalen is 30 years old, and was born and raised in the city of Haarlem, The Netherlands. His background is chemical engineering from Saxion Universities, city of Enschede. After his graduation research at…

Athena Lindsay, Sales Engineer, PWNT

PWNT welcomes aboard Athena Lindsay, who joins us as a Sales Engineer. Hailing from Alabama, USA, she completed her B.Sc. in Biological Engineering at Louisiana State University and her M.Sc. at IHE Delft in Urban…

Proven technologies

In today’s global markets innovative ideas are not enough.
Innovations that are validated, proven and work are true assets.

Our solutions

Integrated Solutions

With SIX®, Ceramic Micro Filtration, UV H2O2 treatment and GAC filtration as unique, innovative components for fully integrated, sustainable water treatment processes, based on process fundamentals, mathematics and hydraulics and real world testing, PWNT experts are able to provide end-users with custom-oriented solutions.

CeraMac®

CeraMac® is a well designed and engineered filtration process based on ceramic membranes. By combining up to 90 ceramic membrane elements into one vessel, the application of ceramic membranes becomes a highly economical and compact solution.

SIX®

SIX® stands for Suspended Ion eXchange process and is designed to remove Dissolved Organic Carbon (DOC) from the water to improve membrane filtration performance. SIX® also removes sulphate, nitrate, and phosphate. Removal of DOC minimizes membrane fouling and reduces the formation of trihalomethanes (THMs) after final disinfection with chlorination.

ILCA®

PWNT’s In-Line Coagulation and Adsorption (ILCA®) process was developed to minimise coagulation/flocculation footprint and to simplify pre-treatment upstream of CeraMac®. For most surface waters, coagulated feed water lowers the ceramic membrane fouling rate, but strong, large, setting flocs are not required for filtration with ceramic microfiltration.