Printing & dyeing wastewater, steel plant circulating cooling water and municipal tertiary reclaimed water contain massive organic sludge, algae and biological mucus. Ordinary standard LF-BW RO membrane will form thick biofilm within 1–2 months of operation, leading to soaring differential pressure, reduced water production capacity and mandatory monthly shutdown chemical cleaning, which causes huge production loss and extra chemical procurement cost. Our LF-BW-FR anti-fouling brackish RO element upgrades two core structures: super hydrophilic modified TFC surface and widened 34mil internal feed channel, slowing pollutant adhesion and accumulation significantly. The chemical cleaning cycle can be extended from 1–2 months to over half a year, and stable salt rejection above 99.6 can be maintained even under long-term high-COD raw water inlet conditions.
All LF-BW-FR anti-pollution RO membrane and large-flux PVDF external pressure UF membrane modules can be fully viewed inside our water filter element.
Core Product Parameters & Series
1. LF-BW-4040FR: 9.3㎡ membrane area, daily water output 7.2m³, salt rejection ≥99.5%
2. LF-BW-8040FR: 37.2㎡ membrane area, daily water output 39.7m³, salt rejection ≥99.6%
3. LF-BW-8040FR-PRO: 40.9㎡ membrane area, daily water output 41.6m³, salt rejection ≥99.7%
4. LF-BW-8040FR-440D: 40.9㎡ membrane area, daily water output 45.4m³, salt rejection ≥99.6%
Test condition: 225psi pressure, 2000ppm NaCl, temperature 25℃, single element recovery rate 15%
Main Application Scenarios
1. Printing and dyeing factory wastewater zero discharge desalination equipment
2. Steel mill circulating cooling water advanced reuse station
3. Municipal secondary sewage landscape water recycling project
4. Landfill leachate secondary reverse osmosis deep treatment line
5. Petrochemical and coal chemical high organic wastewater recovery unit
6. Electroplating factory heavy metal wastewater pretreatment desalination system
Key Performance Advantages
1. Special hydrophilic coating inhibits organic and microbial adhesion on membrane surface
2. 34mil wide flow channel reduces dirt stacking inside membrane envelope
3. Excellent flux recovery after sodium hypochlorite and acid-alkali cyclic cleaning
4. Wide cleaning pH tolerance range 1–13, fit strong detergent maintenance
5. Standard 4/8-inch universal size compatible with all FRP pressure vessels
6. Matched large-area PVDF UF membrane lowers front pollution load drastically
For heavy pollution wastewater projects, we recommend configuring LF-UF-8060W PVDF external pressure ultrafiltration as primary filtration to intercept oil emulsions and large colloids in advance, minimizing long-term membrane replacement expenditure. We offer on-site water quality data-based cleaning cycle optimization plans for large sewage treatment plants.
If you are interested in our membrane solutions, please contact us.
