Industrial Nanofiltration Membrane
What Is YIME Industrial Nanofiltration Membrane?
Industrial NF membrane, also known as an industrial nanofiltration membrane, is a pressure-driven membrane separation technology positioned between ultrafiltration (UF) and reverse osmosis (RO). Nanofiltration membranes allow certain small molecules and low-valence ions to pass through while effectively retaining most organic substances, colloids, bacteria, and multivalent ions. Therefore, NF membranes have significant application value in modern industrial water treatment systems. Typically, the pore size of an NF membrane is around 1–2 nm, and it can retain substances with molecular weights ranging from approximately 150–500 Da. The term “nanofiltration” originates from its nanometer-scale separation capability.
Industrial NF membranes possess partial desalination capability for dissolved salts. Their rejection rate for monovalent ions is relatively lower, while multivalent ions can be removed much more effectively. This selective separation characteristic makes NF membranes widely used in groundwater softening, removal of organic matter from surface water, industrial wastewater recycling, food concentration, and pharmaceutical separation applications.
YIME nanofiltration membranes adopt a spiral-wound membrane structure, as shown in the figure on the left.
Compared with traditional treatment technologies, industrial NF membranes offer several advantages, including lower operating pressure, reduced energy consumption, high separation efficiency, and a high degree of system automation. As a result, they have become an important core technology in modern industrial separation and water treatment applications.
Basic Characteristics of YIME Nanofiltration Membrane
Working principle and operation of nanofiltration membranes
Industrial Nanofiltration Membrane
| Item | Description |
|---|---|
| Separation purpose | Removal of organic compounds from solvents, removal of high-valence ions, water softening, decolorization, concentration, and separation |
| Permeating components | Solvent and low-molecular-weight solutes |
| Rejected components | Solutes larger than 1 nm |
| Content of permeating components in feed solution | Large amount of solvent and low-molecular-weight solutes |
| Driving force | Pressure difference of 500–1500 kPa |
| Transport mechanism | Solution–diffusion mechanism, Donnan effect |
| Membrane type | Asymmetric membrane or composite membrane |
| Physical state of feed and permeate | Liquid(aqueous phase or organic solvent system) |
Application scenarios
Applications of membranes and their characteristics
Hard water softening
Nanofiltration membranes remove hardness-causing divalent ions and reduce water hardness through physical separation.
Treatment of reclaimed water and wastewater
Used for removing organic matter, surfactants, multivalent ions, and trace contaminants from reclaimed water or wastewater.
Removal of harmful substances in drinking water
Removes harmful substances from drinking water while retaining beneficial minerals.
Desalination and concentration in dye refining
Removes inorganic salts from dye solutions while concentrating dye molecules
Why Choose Nanofiltration?
| Item | Advantages |
|---|---|
| High Efficiency | High process yield with minimal product loss |
| Resource Recovery | Recovers valuable substances such as acids, alkalis, and alcohols for recycling |
| Low Energy Consumption | No phase change during the separation process |
| Gentle Separation | Suitable for heat-sensitive materials and precision separation applications |
YIME nanofiltration (NF) membranes are part of our one-stop water treatment solutions, designed and manufactured in China to meet a wide range of industrial and commercial needs.
We support customers from the very beginning by analyzing their project requirements and feed water conditions to determine whether NF technology is the most suitable option. Based on this evaluation, we recommend the most appropriate membrane model to ensure optimal separation performance, whether for selective ion removal, desalination, or process optimization.
Once confirmed, we handle efficient order processing and reliable logistics delivery, ensuring a smooth and professional end-to-end cooperation experience from technical consultation to final shipment.
Clarify filtration requirements
we first review your project and water quality to assess whether nanofiltration (NF) is suitable and provide tailored recommendations.
Confirm NF membrane selection
After assessing your needs, we provide a solution and select the appropriate YIME NF membrane.
Order processing & delivery
After payment is received, we arrange production and shipment, and deliver the products safely and on time via reliable logistics.
We're professional industrial nanofiltration membrane manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale industrial nanofiltration membrane for sale here from our factory. For price consultation, contact us.