Model: NL@F-40 Model: NL@F-51, NL@F-77
model | L1 | L2 | A | B | C | D |
NL@F-40 | 1752mm | 1528mm | 195mm | 164mm | DN32 | 160mm |
NL@F-55 | 1860mm | 1630mm | 135mm | 180mm | DN50 | 225mm |
NL@F-80 | 2360mm | 2130mm | 135mm | 180mm | DN50 | 225mm |
characteristic:
■ Ultrafiltration membrane technology can thoroughly remove pollutants such as bacteria, viruses, colloids, macromolecular organic matter, and algae.
■ It uses a PVDF hydrophilic membrane, which has strong chemical stability, is resistant to fouling, and the membrane module is easy to clean and maintain, with a long service life.
■ The external pressure structure design can withstand higher influent turbidity compared to the internal pressure structure, reducing the need for pretreatment processes.
■Suitable for water purification of river water, reservoir water, and spring water, pretreatment of seawater desalination, industrial wastewater treatment, and sewage reuse.
Technical parameters of external pressure ultrafiltration membrane module:
Membrane module model | NL@F-40 | NL@F-55 | NL@F-80 | |||
Basic parameters | Membrane module length (mm) | 1752 | 1860 | 2360 | ||
Membrane module outer diameter (mm) | 160 | 225 | 225 | |||
Effective membrane area (m2) | 40 | 55 | 80 | |||
Membrane fiber material | PVDF | |||||
Membrane fiber pore size (μm) | 0.02 | |||||
Membrane fiber inner/outer diameter (mm) | 0.7/1.3 | |||||
Membrane shell material | UPVC | |||||
Sealing materials | Epoxy resin | |||||
Save method | Wet preservation / Dry preservation | |||||
Running parameters | Influent turbidity (NTU) | ≤100 | ||||
Operating pressure (MPa) | 0.1～0.3 | |||||
Design flux (L/(m2・h)) | 35～135 | |||||
Operating mode | Full filtration/cross-flow filtration | |||||
Filtration cycle (min) | 30～60 | |||||
Backwashing method | Air-water backwash | |||||
Backwash time (min) | 2 | |||||
Backwash pressure (MPa) | 0.25 | |||||
Backwash flow rate (m³/h/membrane) | 4.0 | 5.5 | 8.0 | |||
Aeration pressure (MPa) | 0.1 | |||||
Air scrubbing intensity (m³/h/membrane) | 6.0 | 7.8 | 12.0 | |||
Maintenance cleaning method | Physicochemical cleaning | |||||
Maintenance cleaning cycle (d) | 7～14 | |||||
Maintenance cleaning agent, concentration | NaClO (200-500 mg/L) | |||||
Chemical cleaning cycle (monthly) | 6～12 | |||||
Chemical cleaning methods | Physicochemical cleaning | |||||
Chemical cleaning agents, concentration | NaOH (0.02%) + NaClO (1000 mg/L) + Citric Acid (2%) | |||||
Note: The above parameters are all reference values. The operating control parameters of the membrane module should be set reasonably according to the actual situation. | ||||||
