UF:
Polyvinylidene fluoride (PVDF) hollow fiber prepared by phase inversion method ultrafiltration membrane It has excellent thermal stability, chemical stability and mechanical strength, with a molecular weight of 10000-150000 Da, It has good retention effect on macromolecular substances (proteins, enzymes, nucleic acids, polysaccharides, etc.), colloidal particles (latex, microparticles), bacteria, etc. The PVDF membrane is highly hydrophobic and easy to be polluted, The company adopts the amphiphilic polymer modifier with independent intellectual property rights to hydrophilic modify the membrane and prepare a high flux, anti pollution hydrophilic PVDF hollow fiber ultrafiltration membrane.
Product features:
1. Good permeability
High water flux and good permeability
2. Large influent particles
Higher suspended solids content and larger particle diameter of influent are allowed
3. Excellent interception performance
High filtering precision and excellent interception performance
4. Strong hydrophilicity
Hydrophilic modification of independent intellectual property with strong hydrophilicity
5. Excellent anti pollution performance
Excellent anti pollution performance
6. High mechanical strength
High mechanical strength, the tensile force of a single homogeneous membrane can reach 280~300g
| UF Membrane Specifications |
Basic form
Basic Information | Filtering form Filtration Mode | External pressure External Pressure |
Membrane material Membrane Material | PVDF |
Membrane filament inner/outer longitude Membrane ID/OD | 0.8mm/1.2mm |
Bonding material Bonding Material | epoxy resin Epoxy |
Shell material Shell Material | ABS |
aperture Pore Size | zero point zero three μ m |
Effluent turbidity Producing Water Turbidity | ≤0.5UTN |
Effluent suspended solids Producing Water Suspended Substances | Not detectable |
Water producing Escherichia coli Producing Water E. coli | Not detected Not detected |
| Maximum water inlet pressure Maximum water inlet pressure | 0.6Mpa |
Maximum transmembrane pressure difference Max. Trans-membrane Differential Pressure | 0.2Mpa |
Performance Performance | Maximum residual chlorine resistance Max. Resistance to Residual Chlorine | 500mg/L |
Maximum inlet residual chlorine Max. Residual Chlorine for Influent | 200mg/L |
Maximum inlet turbidity Max. Turbidity for Influent | 300UTN |
working temperature Operating Temperature | 5—40℃ |
Service conditions
Operating Condition | PH value tolerance range PH Tolerance Scope | 2—12 |
Design working pressure Design Operation Pressure | 0.05—0.2Mpa |
Operation mode Operation Mode | Dead end filtration or cross flow filtration Dead-end filtration or Cross-flow filtration |
Backwashing pressure Backflush Pressure | 0.05-0.20Mpa |
| Backwashing cycle Backwashing Cycle | 20—60min |
Backwashing time Backwashing Time | 60—120s |
Chemical dispersion cleaning frequency Chemical Dispersion Cleaning Frequency | 1-2d (each time) or chemical dispersion cleaning is not set according to the inlet water quality 1—2d/time or (none according to influent quality) |
Chemical dispersion cleaning time/solution concentration Chemical Dispersion Cleaning Time/Pharmaceutical Concentration | 10-20min/time sodium hypochlorite Sodium Hypochlorite 200—500mg/L10—20min |
Cleaning conditions
Cleaning Condition | Chemical cleaning frequency Chemical Cleaning Frequency | Times/2-4 months/time |
Chemical cleaning time/solution concentration Chemical Cleaning Time/ Pharmaceutical Concentration | 4—6h/time Sodium Hypochlorite 1000—2000mg/L、 Citric Acid 2000—4000mg/L |
Zhejiang Jiefu Environmental Protection Technology Co., Ltd. is a professional manufacturer Water purification filter element , separation, purification materials and product research and development, manufacturing, engineering applications and marketing of high-tech companies. Since its establishment, it has always focused on the R&D and promotion of a variety of new filtration and separation materials and products, polymer separation membrane materials and equipment. It has been widely used in wastewater treatment and reuse, water quality purification, solution concentration, extraction and recovery, liquid degassing and other fields, meeting the user's multiple needs for water filtration and phase separation. Welcome to call: 0573-88222777
