Introduction
LEFILTER Reverse Osmosis (RO) Membrane is a high-precision filtration core component designed for water purification, seawater desalination, and industrial fluid treatment. With a filtration accuracy of 0.0001 microns (equivalent to 1/50,000 of a hair’s diameter) and a desalination rate of up to 99.9%, it efficiently removes salts, bacteria, viruses, heavy metal ions, and colloids, ensuring stable production of high-purity water.
Developed by Xinxiang Lifeierte Filter Corp., Ltd. (15 years of filtration industry experience), the membrane integrates advanced composite materials (aromatic polyamide + polyester support) and anti-fouling technology, making it suitable for both large-scale projects (e.g., seawater desalination plants) and small-batch applications (e.g., laboratory pure water systems).
Ultra-high filtration precision: 0.0001 microns filtration accuracy, intercepting 99.99% of viruses, 99.8% of heavy metal ions, and 98% of colloids (data from Membrane Separation Technology Handbook, 2023).
High desalination & water production efficiency: Under 500 psi pressure, desalination rate reaches 99.8% (industry average: 99.5%); water production rate up to 45% (10% higher than traditional membranes) via "wide flow channel" design (1.5mm inlet channel).
Long service life: Anti-fouling hydrophilic coating reduces organic adsorption, extending cleaning cycle to 90 days; black nitrile rubber (NBR) sealing rings resist 10bar pressure, ensuring average lifespan of 3 years (1.5x longer than ordinary membranes).
Strong customization: Supports size (40-80 inches length, 4-8 inches diameter) and precision (0.0001-0.001 microns) customization, with minimum order quantity of 1 piece for trial.
International certifications: Passed CE, ISO9001, and NSF/ANSI 61, meeting global industrial standards.
Technical Data
Reverse osmosis (RO) is a pressure-driven separation process that relies on the selective permeability of semipermeable membranes:
Pressure application: External pressure (higher than the osmotic pressure of the feed water) is applied to the raw water side.
Molecular separation: Water molecules (smaller than 0.0001 microns) pass through the nanoscale pores of the aromatic polyamide，while impurities (salts, bacteria, colloids) with larger molecular sizes are intercepted.
Concentrate discharge: The intercepted impurities are discharged as concentrated water, ensuring continuous purification.
LEFILTER’s composite membrane structure enhances efficiency: the ultra-thin polyamide layer ensures precision, while the polyester support layer improves mechanical strength, resisting pressure deformation during long-term operation.
Pain Point: Pharmaceutical intermediate production generates wastewater with high COD (10,000–50,000 mg/L) and bio-toxic substances (e.g., pyridines), challenging biodegradation.
Solution: "RO + MVR (Mechanical Vapor Recompression)" process: RO concentrates organics (volume reduction by 80%), MVR evaporates concentrate for resource recovery.
Case: A Zhejiang API factory cut wastewater discharge from 500 m³/d to 100 m³/d. Recovered organic solvents generated ¥2.3 million in annual revenue, with COD removal >95%.
Pain Point: RAS faces ammonia nitrogen accumulation, pathogenic bacteria, and suspended solids, threatening fish survival (safe ammonia nitrogen <0.05 mg/L).
Solution: RO membranes remove 99% of ammonia nitrogen, bacteria, and fine particles. Combined with biofilters, water exchange frequency drops from 30%/d to 5%/d.
Data: A Guangdong tilapia farm using LF-RO membranes increased survival rate from 75% to 92%. Feed conversion ratio improved by 18%, with annual water-saving costs of ¥180,000.
To meet diversified needs, LeFilter offers the following related models:
LF-RO-4040: 40-inch length, 4-inch diameter; suitable for small-scale systems (laboratories, restaurants); water production: 1-2 tons/hour.
LF-RO-8040: 80-inch length, 4-inch diameter; for medium projects (food factories, hospitals); water production: 3-5 tons/hour.
LF-RO-8080: 80-inch length, 8-inch diameter; large-scale desalination plants, power plants; water production: 10-20 tons/hour.
LF-RO-AS: Anti-scaling version, coated with special anti-calcium carbonate layer; ideal for high-hardness water areas (e.g., northern China).
LF-RO-HW: High-temperature resistant (up to 60℃); applicable to hot water treatment in textile/dyeing industry.
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