

Technical parameters of internal pressure ultrafiltration membrane module
Membrane module model | NL@S-35 | NL@S-45 | ||
Basic parameters | Membrane module length (mm) | 1800 | 1670 | |
Membrane module outer diameter (mm) | 235 | 290 | ||
Effective membrane area ( m² ) | 35 | 45 | ||
Membrane fiber material | PES | |||
Membrane fiber pore size (μm) | 0.01 | |||
Membrane fiber inner/outer diameter (mm) | 0.8/1.4 | |||
Membrane shell material | UPVC | |||
Sealing materials | Epoxy resin | |||
Save method | Wet preservation / Dry preservation | |||
Running parameters | Influent turbidity (NTU) | ≤20 | ||
Operating temperature (°C) | 5~40 | |||
Operating pressure (MPa) | 0.1~0.3 | |||
Design flux (L/( m² ·h)) | 50~120 | |||
Operating mode | Full filtration/cross-flow filtration | |||
Filtration cycle (min) | 30~60 | |||
Backwashing method | Water backwash | |||
Backwash time (min) | 1 | |||
Backwash pressure (MPa) | 0.2 | |||
Backwash flow rate ( m³ /h) | 6.0 | 7.8 | ||
Maintenance cleaning method | Physicochemical cleaning | |||
Maintenance cleaning cycle (d) | 7~14 | |||
Maintenance cleaning agents, 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. | ||||






