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INTRODUCTION

NF series product is a polypropylene composite nanofiltration membrane element developed by KeenSen, with selective separation characteristics. It has a high removal rate for almost all bacteria, viruses, microorganisms, macromolecular organics, antibiotics, pesticides, pesticide residues and other small molecular organics, heavy metals and most divalent and multivalent ions in water of solutions, while retaining some sodium, potassium, calcium, magnesium, metasilicic acid, other beneficial nutritional minerals and small molecular substances. It is applicable to the preparation of direct drinking water, mineral water, softened water, partial desalination and decolorization of wastewater with high salt concentration and organic concentration, and separation and purification of certain inorganic salts and organic materials.

Nanofiltration series products have extremely low operating pressure, which can greatly save the operating costs of equipment. The membranes are widely used in drinking water, food and beverage, medicine, water reuse, wastewater treatment and other industries.

SPECIFICATIONS & PARAMETERS

Model	Active Area ft ² (m ²)	Permeate Flow GPD(m ³ /d)	Stabilized Salt Rejection (%)	Solution Type
NF2-2540	27(2.5)	850(3.2)	30-50	NaCl
NF2-2540	27(2.5)	700(2.6)	>97	MgSO ₄

TEST CONDITION

Standard Test Conditions:

Solution	Temperature (℃)	pH	Operating Pressure psi(MPa)	Recovery (%)
500mg/L NaCl	25	7.5-8.0	70(0.48)	15
2000mg/L MgSO ₄	25	6.5-7.0	70(0.48)	15

Permeate Flow Fluctuation Range: ±15%

Membrane Element Operating Limits:

Maximum Operating Pressure	600 psi(4.14MPa)
Maximum Feed Flow Rate	1.4m³/h
Operating Temperature Rang	45 ℃
Maximum Feed SDI ₁₅	5.0
Free Chlorine Tolerance	0.1mg/L
pH Range, Continuous Operation	3-10
pH Range, Short-Term Cleaning	1-13
Maximum Element Pressure Drop	15psi(0.1MPa)

Product classification

NF Membrane Elements

Keywords

NF Membrane Elements

NF2-2540

Nanofiltration products operate at extremely low pressures, significantly reducing equipment and system operating costs. They are widely used in drinking water, food and beverage, pharmaceutical, reclaimed water reuse, and wastewater treatment industries.