NF500 Membranes

//NF500 Membranes

Nanofiltration (NF) Membranes

NF500 Membranes

IonClear™ NF500 membranes are characterized by extremely high flux and rejection rate, high retainment of divalent salt and excellent passing of monovalent salt. It offers moderate removal rate of organic matters while achieves high flux. It can effectively retain organic compounds with cut-off molecular weight within the range of 300~500D. It offers excellent decolorization as well. The NF500 series adopt the latest membrane manufacturing technology to minimize dead spots and bypasses during filtration process. It is suitable for waste water reuse, municipal water treatment, etc.

  • High flux

  • Suitable for decolorization and COD removal

Product Dimensions
Model
A inch (mm)
B inch (mm)
C inch (mm)
D inch (mm)
NF-500-400
40(1,016)
Row 1, Col 3
1.125 (29)
7.9 (201)
NF-500-82
37.9(963)
1.05 (26.7)
0.75(19)
3.9 (99)
Product Specifications
Model
Effective Membrane ft² (㎡)
Stabilized Rejection Rate(%)
Flux, gpd (m³/d)
NF-500-400
400 (37)
＞90
13200(50)
NF-500-82
82 (7.6)
＞90
2900(11)

Flux and rejection rate is based on the following standard test conditions: 0.48 MPa (70 psi) pressure, 77°F (25°C), 2,000 ppm MgSO solution and pH 8 for feedwater, and 15% recovery.

Operating and Cleaning Limits
  • Maximum Operating Pressure                41 bar (600 psi)
  • Maximum Operating Temperature        45°C (113°F )
  • Maximum Element Pressure Drop         1.0 bar (15psi)
  • pH Range Continuous Operation            3-10
  • pH Range Short-Term Cleaning               1-12
  • Maximum Feed SDI(SDI )                         5.0
  • Free Chlorine Tolerance                            < 0.1 ppm
Notes
  • Permeate flow for individual elements may vary ±15 percent from the value specified.
  • Active membrane area guaranteed ±4%.
  • Stabilized salt rejection is generally achieved within 24-48 hours of continuous use; depending upon feedwater characteristics and operating conditions.
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