Product Introduction
It has a strong selective interception ability for low-valent ions and high-valent ions, and also has an extremely low operating pressure. It can be widely used in drinking water purification and desalination, concentration and separation of sugars, various amino acids, organic acids, etc.; it can be used for desalination or decolorization of surface water, landfill leachate, and printing and dyeing wastewater; it can also be widely used in the fields of pharmaceutical extraction, salt chemical industry, material concentration, and wastewater resource utilization. NF30-400HP uses high-pressure resistant components such as polystyrene central tube and end cap packaging, which is suitable for high-pressure nanofiltration salt separation (maximum tolerance pressure 8.27 MPa).
Product Specifications Performance Parameters Table
|
Model |
NaCl Removal rate |
MgSO4 Removal rate |
NaCl solution water production |
Water production of MgSO4 solution |
Effective membrane area |
Feed spacer |
Test solution concentration |
Test pressure |
|||||
|
% |
% |
GPD |
m³/d |
GPD |
m³/d |
ft2 |
㎡ |
mil |
mg/L |
psi |
MPa |
||
|
NF30-400HP |
30-40 |
≥97 |
11000 |
41.6 |
10000 |
37.9 |
400 |
37.2 |
34 |
NaCl: 500 |
MgSO4: 2000 |
100 |
0.69 |
Test conditions: test liquid temperature 25 ℃, pH value 7.5-8.0, recovery rate 15%; water production range ±15%
Operating conditions
|
Maximum operating pressure |
600 psi (4.14 MPa) |
|
Maximum water inlet temperature |
45 ℃ |
|
Maximum water intake |
17.0 m3/h (8040)、3.6 m3/h (4040) |
|
Maximum inlet silt density index SDI15 |
5.0 |
|
Residual chlorine tolerance |
0.1 mg/L |
|
Inlet water pH range during continuous operation |
2-11 |
|
Chemical cleaning (30 min) pH range of influent water |
1-13 |
|
Maximum allowable pressure drop of a single membrane element |
15 psi (0.10 MPa) |
1. The maximum temperature for continuous operation at pH above 10 is 35°C;
2. Under certain conditions, the presence of residual chlorine and other oxidants can cause premature failure of the membrane. It is recommended that users remove residual chlorine by pretreatment before it contacts the membrane.