Nanjing NF Concentrate Separation Equipment - Fully Automatic Water Treatment Equipment - Easy Operation - Quankun Customized
Nanofiltration (NF) is used to separate smaller molecular weight substances, such as inorganic salts or PUTAOTANG, and small molecular organic compounds like sucrose, from solvents. Also known as low-pressure reverse osmosis, NF represents an emerging field in membrane separation technology, with separation capabilities falling between reverse osmosis and ultrafiltration. It permits certain inorganic salts and some solvents to pass through the membrane, achieving the desired separation effect.
Nanofiltration is primarily used in the purification of drinking and industrial water, wastewater treatment, and concentration of valuable components in process fluids. Nanofiltration membranes are mostly derived from reverse osmosis membranes, such as CA, CTA membranes, aromatic polyamide composite membranes, and sulfonated polyether sulfone membranes, etc. However, compared to reverse osmosis, it operates at a lower pressure, hence nanofiltration is also known as "Low-Pressure Reverse Osmosis" or "Loose RO".
NF Equipment Features:
1. Pressure stability is ensured. The pressure boosting component uses an imported plunger diaphragm pump, featuring high pressure, high efficiency, corrosion resistance, strong self-priming capability, and with the added function of variable frequency control. This allows for free adjustment of pressure and flow, serving as a crucial guarantee for the stable operation of the system.
2. Delicately designed. The overall structure is compact, operation is simple, with a small footprint, high pressure-bearing capacity, corrosion resistance, and excellent sealing.
3. System Superiority and Safety: Equipped with multiple safety protections for your peace of mind: Variable frequency speed control to manage flow, reducing energy consumption while preventing the impact of water hammer on membrane components during startup; safety relief valve that automatically releases pressure when overpressure occurs; energy storage damper to avoid pressure fluctuations, ensuring smoother fluid operation.
The system operates in a fully enclosed pipeline, constructed with Sanitary Grade stainless steel, ensuring a safe and hygienic work environment that meets GMP or FDA regulatory production standards. With a high degree of process integration and rational layout, it achieves full automatic control. Our engineers will provide on-site system maintenance.
Nanofiltration (NF) Features:
However, the nanofiltration membrane has a charge, which is an important reason why it retains high desalination performance at low pressure, and can also remove inorganic salts through a membrane with a molecular weight cut-off of hundreds. Its main characteristics are as follows:
Permits small molecule organics and monovalent ions to pass through.
2. Can retain organic substances with a molecular weight greater than 100 and multivalent ions.
3. Operates under high temperatures, acids, alkalis, and other severe conditions; resistant to contamination.
4. Low operating pressure, high membrane flux, and low facility operating costs.
Nanjing NF Concentrate Separation Equipment - Fully Automatic Water Treatment System - Easy Operation - Quankun Customized
Applications of Nanofiltration Membranes:
Water softening treatment, which can remove turbidity, color, and organic matter; rainwater recycling, reclaimed water, and wastewater treatment; concentration and refinement of products in the food, beverage, and medicine industries, such as various proteins, vitamins, amino acids, soy sauce, seasonings, dairy products, and alcoholic beverages; concentration and separation of process solutions in chemical engineering; removal of harmful substances from drinking water; surface water and groundwater treatment.
