Nanofiltration Membranes


Working Principle of Nanofiltration Membranes





Nanofiltration membranes are membranes with "nano-sized pores," positioned between ultrafiltration and reverse osmosis. They can selectively separate and remove small molecular proteins, polysaccharides, bivalent salts, and other impurities based on the molecular weight of the target product. The separation process through nanofiltration membranes effectively distinguishes between monosaccharides and polysaccharides, as well as monovalent and multivalent salts, achieving results that traditional methods struggle to attain. This selective separation capability makes nanofiltration membranes highly effective in various industrial applications.





Key Features:






High-Performance Membrane Elements: The core membrane elements utilize high-quality imported organic membranes, selected in various configurations according to specific process requirements to ensure retention performance, membrane flux, and system stability.



Low Operating Pressure: Nanofiltration systems operate effectively at lower pressures, allowing for thorough desalination and concentration, resulting in short production cycles, high product purity, and stable quality.

Recoverable Performance: Membrane systems can recover their performance after professional cleaning, enhancing the economic practicality of the equipment.

Ambient Temperature Processing: The treatment process operates at ambient temperatures without phase changes, preventing damage to heat-sensitive substances and helping to maintain the content of active ingredients in products.



Hygienic Design: The system employs fully enclosed piping operations, using sanitary-grade stainless steel materials compliant with GMP standards, ensuring safety and hygiene at the worksite.

Integrated Control: The highly integrated process design allows for rational layout, achieving fully automated control and online monitoring of critical process parameters to maintain real-time awareness of system operating conditions.



Applications:




Pharmaceutical Industry: Desalting and concentrating antibiotic resin elution; concentrating vitamins.

Acid and Alkali Recovery: Recovery of washing column acid and alkali waste liquids in the pharmaceutical industry; recovery of waste acids and alkalis in the chemical fiber industry.


Mother Liquor Recovery: Impurity removal from monosodium glutamate mother liquor; impurity removal from glucose crystallization mother liquor.

Amino Acid Processing: Decolorization, impurity removal, concentration, and desalination.




Dye Processing: Desalting and concentration, replacing salt and acid precipitation processes.

Water Treatment: Treatment of dyeing wastewater; reuse of reclaimed water; preparation of ultrapure water.