NF membranes remove hardness, sulphate and colour-causing organic matter at high rates while partially letting sodium and chloride through. They operate at lower pressure than RO and consume less energy. Also known as "membrane softening", NF is preferred for colour and hardness removal in drinking water and for separation applications in food processes.
Technical glossary· Membrane technologies
Nanofiltration (NF)
Short definitionMembrane filtration that sits between UF and RO, retaining multivalent ions (hardness) and organics while letting part of the monovalent salts through.
Free water analysis
Let's choose the right system for your facility together
We collect your sample, analyse it in our own laboratory and present a system proposal tailored to you in a report based on the results.
- Our own laboratory
- On-site survey
- Written report
