PWNT is wholly owned by Dutch water utility PWN, and is unique in its formation and mission to make the utility’s 100 years of experience and innovations in water treatment available 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.
PWNT is pleased to announce the launch of our Knowledge Base.
Discover and download papers and presentations.
In today’s global markets innovative ideas are not enough.
Innovations that are validated, proven and work are true assets.
Our 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.
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.
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.
