No matter XULP / BW / BW-FR / SW / ULP series RO membrane, long-term operation without complete ultrafiltration pretreatment will face irreversible pollution and scratch failure. Ordinary multi-media filter and security filter can only remove large particle impurities, but cannot intercept colloids, algae and tiny microorganisms in raw water, which will form thick biofilm on the surface of RO membrane within a short time, increase differential pressure and shorten service life by more than half. Our PVDF external pressure hollow fiber UF membrane adopts super hydrophilic modified PVDF raw material, the filtration precision is 0.01μm, which can remove more than 99% of colloids, bacteria and suspended micro-particles, stably control the inlet SDI value of all RO membrane systems below 3, and double the service life of reverse osmosis elements. The material has ultra-high chlorine resistance and can withstand high concentration sodium hypochlorite backwashing without fiber fracture.
All specifications of PVDF external pressure UF membrane and matched full series RO membrane elements can be checked in our water filter element series.
Main Industrial Application Fields
1. Full series RO membrane system front-end pretreatment protection
2. Oilfield oily produced water solid-liquid separation treatment
3. Municipal sewage reuse pre-filtration process section
4. Power plant circulating cooling water turbidity reduction equipment
5. Printing and dyeing high organic wastewater primary filtration
6. Seawater desalination multi-stage pretreatment system
Core PVDF UF Membrane Performance Advantages
1. Super hydrophilic modified PVDF material, not easy to adsorb oil and organic pollutants
2. Ultra-high tensile fiber, no breakage under high-flow backwash impact
3. Excellent chlorine resistance, tolerate long-term 5000ppm sodium hypochlorite cleaning
4. Automatic online backwashing function, greatly reduce manual maintenance labor
5. Adjustable membrane area from small 4 square meters to large 75 square meters
6. Perfect matching with all industrial RO membrane specifications and high-flow filter cartridges
Full PVDF External Pressure UF Complete Model List
LF-UF-4046W, LF-UF-6060W, LF-UF-8060W, LF-UF-2880W, LF-UF-1060W
The standard complete water treatment process recommended by our technical team: Raw water → Multimedia filter → PVDF external pressure UF membrane → 5μm high-flow security filter → High-pressure pump → All models RO membrane. This process completely solves the two major failure problems of RO membrane biological fouling and particle scratch.
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