Drinking water

Our breakthrough nanofiltration membranes enable robust and sustainable drinking water production from polluted surface or well water by removing color, TOC, humic acid, micropollutants, medicine residues, pesticides, PFAS and other pollutants in one single step. Large parts of the world are already in a water stressed situation, exacerbated by climate change. Therefore we need to start thinking about our water supply in different ways, unlocking new sources for drinking water production, such as polluted surface water or effluent from municipal wastewater treatment plants.

Drinking water

Globally, two in seven people do not have daily access to clean and drinkable water. However, safe and affordable water is essential for health and sanitation. With our breakthrough hollow fiber membrane technology we enable municipalities to purify their water supplies in a sustainable way. Our direct nanofiltration membranes offer the unique combination of a low fouling hollow fiber configuration with the ability to remove organics, turbidity, suspended solids, bacteria, viruses and chemicals such as PFAS from water in one simple step. Other than a simple strainer, no further pre-treatment is required. A unique solution for troubled water.

NX Filtration has drinking water approvals from Kiwa, KTW, and NSF.


Color removal
Our direct nanofiltration membranes are the sustainable solution for the removal of color, humic acids and COD/BOD from polluted water. Producing very clear potable water directly from surface water, well water or rain water are areas where our membranes excel, while saving on energy usage and chemical dosing compared to traditional membrane technologies.

Find out more about how we facilitated a drinking water plant in Dumai - Indonesia
Well water treatment
Water stress forces us to consider colored and polluted groundwater as a source for potable water. Our direct nanofiltration membrane process is applied for the treatment of various types of well water to produce drinking water in a sustainable way by removing color, bacteria and viruses, and micropollutants in one simple and robust step.

Read more about our applications for a municipal drinking water company in South East Asia.
Colored surface water treatment
Warm and dry summers are becoming a reality in more parts of the world. Climate change is increasingly causing lowering groundwater levels. Surface water is developing itself as an important alternative source of drinking water. Our direct nanofiltration membrane process is applied for treatment of various types of surface waters to produce drinking water in a sustainable way by removing turbidity, suspended solids, bacteria and viruses, color, micropollutants, microplastics and PFAS in one simple and robust step.

Real all about our application to produce clean drinking water from the Mekong river in Vietnam
PFAS removal
Water contaminated with per- and polyfluoroalkyl substances (PFAS) poses a public health and environmental risk. Most conventional water treatment plants are not suited for PFAS removal. Our direct nanofiltration membranes offer an effective and efficient barrier for different PFAS molecules and can be integrated into processes to produce safe and PFAS free water, or for remediation of contaminated water sources.

Read more about the KWR validation of our PFAS retention
  • Energy
  • Low
  • Simple
  • Chemical
Filtration objective
Suspended solids and turbidity
Protein, colloidal silica and nano plastics
Micropollutants, color, humic acids and selective PFAS
Selective salts, partial softening and PFAS
Cut off
Typical Flux (l/m2h)
MgSO4 rejection (%)
Nano dNF
Ultra UF
Micro MF

Case studies

  • Direct nanofiltration
    Surface water treatment for drinking water and process water at a power plant in Sweden
    View case
  • Direct nanofiltration
    Drinking water production from river water in Indonesia
    View case
  • Direct nanofiltration
    NX Filtration to deliver pilot system to produce clean drinking water from the Mekong river in Vietnam
    View case


Robert Gerard
Water and wastewater expert