Most engineering purchasers blindly purchase single RO membrane without matched UF membrane according to actual raw water test data, resulting in frequent clogging, unstable water conductivity and extremely high annual operation cost. Correct matching of ultrafiltration and reverse osmosis must be judged by three core indicators: raw water TDS salinity, COD organic content and raw water turbidity. This guide sorts targeted matching schemes covering six mainstream industrial water sources based on full LF membrane series parameters from our product catalog, helping buyers avoid wrong model procurement losses and realize long-term low-cost stable water treatment equipment operation.
All full-series RO membrane and UF membrane selection reference data can be found inside our water filter element.
Classified Matching Rules By Raw Water Quality
1. Low TDS tap water (TDS＜500ppm): LF-XULP RO + LF-UF-4040 PAN internal pressure UF membrane
2. Medium salinity brackish water (500–2000ppm): LF-BW RO + LF-UF-6060W PVDF UF membrane
3. High COD printing & dyeing wastewater: LF-BW-FR anti-fouling RO + LF-UF-8060W large-flux PVDF UF
4. Seawater raw water (TDS＞32000ppm): LF-SW seawater RO + multi-stage PVDF external pressure UF
5. Food factory low-pollution raw water: LF-ULP RO + small LF-UF-4040 PAN UF
6. Power plant high-turbidity river cooling water: LF-BW industrial RO + LF-UF-2880W large-area PVDF UF
Main Industrial Application Scenarios For Dual-Membrane System
1. Semiconductor wafer high-purity water dual-membrane workshop
2. Food factory edible pure water full automatic production line
3. Large thermal power station boiler make-up water station
4. Printing & dyeing wastewater zero discharge desalination equipment
5. Pharmaceutical sterile purified water integrated system
6. Island marine seawater desalination water supply unit
Comprehensive Dual-Membrane System Advantages
1. Two-stage graded filtration completely eliminates particulate & biological pollution sources of RO membrane
2. Extend RO chemical cleaning cycle from 1–2 months to over half a year to cut chemical expenditure
3. Reduce frequent shutdown production loss caused by membrane blockage
4. Stabilize outlet turbidity and conductivity to guarantee consistent production quality
5. Compact integrated layout saves factory workshop floor occupation
6. One-stop supply of all UF membrane and RO membrane without multi-supplier procurement
All LF Membrane Full Series Summary
RO Full Series: LF-XULP, LF-ULP, LF-BW, LF-BW-FR, LF-SW
UF Full Series: PAN Internal Pressure LF-UF Series, PVDF External Pressure LF-UF-W Series
Our professional technical team provides free targeted membrane selection reports based on customer raw water test reports, hourly water volume and industry production standards, and supports customized special-size membrane modules for unique working conditions.
If you are interested in our membrane solutions, please contact us.
