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ENERGY-SOFTENING NANOFILTRATION (NF) SERIES

The new coating technology, which applied in all nanofiltration membrane elements, has the advantages of efficient selectivity and filterability in separation processes without any chemical rezction, heating, phase transition, destroying biological natures or lower pressure than RO process. It has been applied in healthy drinking water and separation & concentration and purification process in food, medicine and biology more and more widely.


Specification and Main Performance of Membrane Elements
Model
Active Membrane Area ft2(m2)
Solution
Average Permeated Flow GPD(m3/d)
Stable Rejection Rate( %)
JNF-8040 400(37.2)
NaCl
7500(28.4)
40~60
MgSO4
6800(25.7)
>96
JNF-8040-HF
400(37.2)
NaCl
9500(35.9)
40~60
MgSO4
7500(28.4)
>96
JNF-4040
90(8.4)
NaCl
1500(5.7)
40~60
MgSO4
1350(5.1)
>96
JNF-4040-HF
90(8.4)
NaCl
1800(6.8)
40~60
MgSO4
1500(5.7)
>96

Testing Conditions
Testing Pressure
70 psi (0.5Mpa)
Temperature of Testing Solution
25℃
Concentration of Testing Solution (NaCl)
2000ppm
Concentration of Testing Solution (MgSO4)
2000ppm
pH Value of Testing Solution
7.5
Recovery Rate of Single Membrane Element
15%

Operation Limits and Conditions
Max. Working Pressure
600psi(4.14Mpa)
Max. Feedwater Flow

75gpm(17m3/h) (8040)

16gpm(3.6m3/h) (4040)

Max. Feedwater Temperature
45℃
Max. Feedwater SDI15
5
Residual Chlorine Concentration of Feedwater
<0.1ppm
pH Range of Feedwater during Continuous Operation
3~10
PH Range of Feedwater during Chemical Cleaning
2~12
The Max. Pressure Drop of a Single Membrane Element

15psi(0.1Mpa)