Many project purchasers blindly select single RO membrane without matching UF membrane according to raw water quality indicators, resulting in frequent equipment failures and ultra-high operating costs. The collocation of UF membrane and RO membrane must be determined based on three core indicators: raw water TDS value, COD organic content and turbidity. Low-salinity tap water is matched with LF-XULP RO + PAN internal pressure UF; medium-salinity underground brackish water is matched with LF-BW RO + PVDF UF; high-pollution wastewater adopts LF-BW-FR anti-fouling RO + large-flow PVDF UF; seawater desalination must select LF-SW seawater RO + multi-stage PVDF UF pretreatment. This article sorts out the complete classified selection scheme combined with all our membrane series models, covering all mainstream industrial water source types, helping customers avoid wrong model procurement losses and realize long-term low-cost stable operation of dual-membrane equipment.
All full series RO membrane and UF membrane selection supporting products are displayed in our water filter element series.
Classified Matching Application Scenarios Based On Raw Water Quality
1. Low TDS tap water (TDS＜500ppm): LF-XULP RO + LF-UF-4040 PAN internal pressure UF
2. Medium salinity underground brackish water (500-2000ppm): LF-BW RO + LF-UF-6060W PVDF external pressure UF
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 series seawater RO + multi-stage PVDF UF pretreatment
5. Food factory low pollution raw water: LF-ULP commercial RO + small PAN UF membrane module
6. Power plant high turbidity river cooling water: LF-BW 8040 RO + LF-UF-2880W large area PVDF UF
Dual Membrane System Comprehensive Core Advantages
1. Two-stage graded filtration completely block particulate and biological pollution sources of RO membrane
2. Extend RO chemical cleaning cycle from 1-2 months to more than 6 months, save chemical cost
3. Reduce frequent shutdown production loss caused by membrane blockage
4. Stabilize outlet water turbidity and conductivity to ensure consistent production water quality
5. Compact integrated layout save factory workshop floor space
6. One-stop supply of all UF membrane and RO membrane full models without multi-supplier procurement
All Available UF & RO Full Series Model 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 can provide free targeted membrane selection scheme according to customer raw water test reports, hourly water volume and industry production standards. We support customized membrane area and special-size membrane modules for special industrial project working conditions.
If you are interested in us or have any questions, please contact us.
