NF membrane system

The NF (Nanofiltration) Membrane System is an advanced separation technology that bridges the gap between ultrafiltration and reverse osmosis. It operates on the principle of selective separation, utilizing both steric hindrance (size exclusion) and charge effects (Donnan exclusion) to achieve precise filtration. This dual mechanism enables the highly efficient removal of dissolved salts, organic molecules, colloids, and microorganisms, resulting in exceptionally stable and high-purity effluent quality. Key advantages include superior desalination capability, stable operation with consistent output, significant energy savings due to its no-phase-change process, and a high degree of automation that reduces operational labor and costs. Critical performance parameters encompass molecular weight cutoff (MWCO, typically 200-1000 Daltons), membrane pore size (~0.001 μm), operating pressure, salt rejection rate, and organic removal efficiency. Ideal for applications requiring partial desalination, advanced wastewater reuse, and industrial fluid purification, the NF membrane system provides an efficient and sustainable solution for meeting stringent water quality standards.