Product Description
Nanofiltration membranes are capable of rejecting both monovalent and divalent compounds. This feature enables selective permeation. The primary uses include softening, dyes, unique chemicals, expensive raw material recovery, and pretreatment for eliminating sections of monovalent Tone-ions and rejecting divalent Tone-ions in seawater operations.
Puri-guard® Nanofiltration NF 8040 except the standard models,we also selecting the filed professional nanofiltration NF 8040 membrane sheet to guarantee its high-quality output.
This page mainly detailed introduce the NF 30, NF40, NF 60, NF 90 models, in order to well let you choose the best suitable one.
Nanofiltration NF 8040 features
- Selective separation
- Lower operation cost
- Energy saving
- Higher rejection
- Higher system recovery
Nanofiltration NF 8040 different series using application
NF30
Low-salt desalination nanofiltration industrial membrane elements are low-pressure nanofiltration membrane elements specifically used for removing total organic carbon (TOC) and trihalomethane (THM) precursors as well as trace organic pollutants. It has a high removal rate for emerging pollutants (PPCPs, EDCs, POPs) and has high permeability for soluble inorganic salts. Under ultra-low operating pressure, low energy consumption and lower operating costs, it exhibits extremely high overall system performance and has extensive application prospects in areas such as drinking water supply.
NF40
This low salt rejection but higher MgSO4 rejection nanofiltration NF 8040 can used in the condition of in strong acid & alkali environment, Strong oxidant tolerance such as residual chlorine. Our this popular NF40 HR models mainly used in calcium ion removal, landfill leachate filed, biological pesticide treatment application, brine feed liquid, high concentration reactive dye treatment performance.
NF60
The NF60 series salt-selective nanofiltration industrial membrane elements are separation membrane products that have selective permeability for soluble inorganic salts. It has a high permeability of monovalent ions, as well as high retention rates for divalent ions and COD, which is conducive to the separation of high-concentration salt solutions. Mainly applied in fields such as material concentration and separation, salt separation, reclaimed water reuse, and zero discharge.
NF90
The NF series is a type of high-performing desalination nanofiltration membrane element, suitable for the deep treatment fields such as water softening and color purification of municipal water using surface water and groundwater as the source. It's able for the deep treatment fields such as water softening and color purification of municipal water using surface water and groundwater as the source. It is particularly suitable for highly removing substances such as salt, nitrate, iron, pesticides, herbicides, and THM precursors. It can be widely applied to water supply projects with excessive ions and in water treatment fields such as chemical, food, and medicine industries.
FAQ
Q: Delivery time?
A: Normally 20-25 days after getting payment .
Q: MOQ ?
A: 1pcs, normally
Q: Payment terms?
A: 30% TT in advance and 70% against BL copy.
Q: How is NF -8040 different from RO-8040?
A: First, the applications of NF and RO differ. NF is typically used for softening and partial desalination, whereas RO is used for high-purity water and complete desalination. Second, NF's salt rejection ranges from 40 to 90%, while RO's ranges from 95 to 99%.Third, monovalent salt removal in NF is only partial, but in RO it is practically total. Fourth, NF uses less energy, but RO does more.
Q: How long does NF-8040 last ?
A: Typically 2-5 yaers, dependng on feed water quality and maintenance.
Regular cleaning prolongs membrane life.
Avoid chlorine exposure unless the membrane is chlorine-resistant.
Q: How do i select an NF-8040 membrane ?
A: please consider
- Feed water TDS and hardness
- Required product water quality
- System pressure and flow rate
- Temperature and pH of feed water
- Using conditions
Q: Maintenance Recommendations?
A: Pre-treatment: softening, sediment filtration and chlorine removal
Cleaning frequency :Every 6-12 months or when flow drops> 15-20%
Storage :Keep in preservative solution if offline >1 week
Monitoring: regually check pressure drop, permeate flow and salt rejection
Avoid chemical damage : No free chlorine or high oxidizing agents
Q: Repalcement ?
A: The NF-8040 size is standard , can easily to replace the maket popular brand like Dupont, GE, Vontron , etc
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Nanofiltration NF 8040 membrane performance
|
Model |
Permeate flow GPD (m3/d) |
Salt rejection (%) |
Membrane area (ft²/m²) |
Testing pressure (psi/MPa) |
|
PURI-NF30-8040- |
9000 (34.0) |
97 |
400 (37.0) |
70 (0.48) |
|
PURI-NF40-8040- |
9245 (35.0) |
98 |
400 (37.0) |
70 (0.48) |
|
PURI-NF60-8040 |
7000 (26.5) |
97.5 |
400 (37.0) |
70 (0.48) |
|
PURI-NF60-8040FR |
8000 (30.3) |
98.5 |
400 (37.0) |
110 (0.76) |
|
PURI-NF90-8040 |
8000 (30.3) |
99.0 |
400 (37.0) |
70 (0.48) |
|
PURI-NF90-8040-440 |
8800 (33.3) |
99.0 |
440 (41.0) |
70 (0.48) |
|
Testing condition: 2000ppm, MgSO4 25℃, pH=7.5-8, 15% recovery |
||||
Operation Condition
Maximum Operating Pressure 41 bar (600 psi) for NF 40, NF60
Maximum Operating Pressure 25 bar (365 psi) for NF 30, NF90
Maximum Operating Temperature 45ºC (113ºF)
Maximum Pressure Drop per Element 1.0 bar (15 psi)
pH Range, Continuous Operation 2-11 for R40 and
3-10 Nanofitration NF30, 60, 90
pH Range, Chemical Cleaning 1-12 for NF 40
2-12 for NF30, 60, 90
Maximum Feed Silt Density Index (SDI15) 5.0
Free Chlorine Tolerance < 0.1 ppm
Max. feed water flow ------ 75gpm (17m3/h)
|
Model |
A (±2.0mm) |
B (±1.0mm) |
C (±0.1mm) |
D (±0.1mm) |
Diagram |
|
NF-8040 |
1016 |
28.6 |
200 |
Above |
