Hongtek UFP90 Series Hollow Fiber PVC Ultrafiltration Membrane Module are made of modified PVC(polyvinyl chloride) hollow fiber ultrafiltration membrane, which has the characteristics of large flux, high strength, acid and alkali resistance, and drug resistance washing. The membrane module housing is made of UPVC material and is subjected to a pressure more than 1MPa.
Hollow fiber PVC UF membrane modules can be used in cross-flow filtration or dead end filtration operation. Contaminants can be removed through regular physical and chemical cleaning to ensure long-term stable operation of the membrane system. PVC ultrafiltration membrane module is widely used in industrial filtration and reverse osmosis pretreatment systems.
| Module | UFP90 |
| Element size | Ø90×1190mm |
| Membrane material | PVC |
| Active membrane area | 4.8m² |
| ID/OD of hollow fiber | 1.0mm/1.8mm |
| MWCO | 100000 Dalton |
| Filtration rating | 0.01 micron |
| Material of end seal | Epoxy resins |
| Material of housing | UPVC |
| Inlet pipe | DN25 OD 32mm PVC pipe |
| Produced water outlet pipe | DN25 OD 32mm PVC pipe |
| Concentrated water outlet pipe | DN25 OD 32mm PVC pipe |
● High water production flux and high water recovery rate
● Low pressure operation, low energy consumption and cost saving
● Internal and external double cortex, double layer filtration and good effluent quality
● The surface of membrane is smooth, the contaminant falls off easily and easy to clean
● Long working life, membrane is resistant to acid and alkali and has good drug resistance
● Surface water treatment
● RO system pretreatment
● Industrial water treatment
● Mineral water production line
● Industrial wastewater deep treatment reuse
● Municipal sewage advanced treatment reuse
● Residential and commercial water treatment
| Membrane water flow mode | Inside to outside |
| Operation mode | Cross-flow filtration or dead end filtration |
| Pure water flow | 350L/㎡.h 25℃. 0.15Mpa |
| Designed water flow | 40-100L/㎡.h |
| Maximum operating pressure | 0.3Mpa |
| Maximum transmembrane pressure | 0.2Mpa |
| Operating temperature range | 5-45℃ |
| Influent water turbidity | <15NTU |
| Produced water turbidity | <0.1NTU |
| Produced water SS | ≤1mg/L |
| Produced water SDI | ≤3 |
| Operation PH Range | 2-12 |
| Bacterial virus removal rate | >4log |
Work principle of PVC hollow fiber ultrafiltration membrane
● PVC hollow fiber ultrafiltration membrane water flow mode is from inside to outside
● PVC ultrafiltration membrane has strong anti-staining ability, resistant to acid and alkali & good drug resistance
● Inside to outside flow mode of PVC ultrafiltration is suitable for raw water with low turbidity and low suspended matter content
● Stable production water quality, high porosity and uniform distribution, good mechanical strength and strong anti-pollution ability
● The filtration rarting of PVC UF membrane is 0.01 micron, particles such as macromolecules, suspended solids and colloids are trapped inside the membrane
● When the UF membrane module is running, the pollutants are trapped on the inner surface of the membrane silk, there is no dead angle problem and easier to be washed
Project Case of 4" Hollow Fiber PVC Ultrafiltration Membrane Module
Feeding Water Requirements
*Before feeding water, It is recommended that the particles of raw water should be less than 50 microns after the security filter.
| Turbidity | ≤15NTU |
| Oil & Grease | ≤2mg/L |
| Suspended Solid (SS) | ≤20mg/L |
| Total Iron | ≤1mg/L |
| Continuous Residual Chlorine | ≤5ppm |
| Chemical Oxygen Demand (COD) | Suggested ≤500mg/L |
*Material of UF membrane is polymer organic plastic, there must not be any organic solvents in raw water.
Backwashing Parameters
| Maximum Backwashing Pressure | 0.2MPa |
| Backwashing Flow Rate | 100-150L/m².h |
| Backwashing Frequency | Every 30-60min |
| Backwashing Duration | 30-60s |
| CEB Frequency | 0-4 times per day |
| CEB Duration | 5-10min |
| CIP Frequency | Every 1-3 months |
| Sterilization | 15ppm Sodium Hypochlorite |
| Organic Pollution Washing | 0.2% Sodium Hypochlorite + 0.1% Sodium Hydroxide |
| Inorganic Pollution Washing | 1-2% Citric Acid/0.2% Hydrochloric Acid |
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