Introduction
LEFILTER Reverse Osmosis (RO) Membrane delivers 0.0001μm filtration precision (1/50,000 of a hair’s diameter), achieving 99.9% desalination and removing bacteria, heavy metals, and colloids efficiently. Developed by Xinxiang Lifeierte Filter Corp. (15+ years in filtration), it serves scenarios from large-scale seawater desalination to lab pure water systems.
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.
Industry Pain Point: Wastewater from chemical and electroplating industries contains heavy metals (e.g., Cr⁶⁺, Ni²⁺) and high-concentration organics, with strict discharge limits (e.g., GB 21900-2020 Emission Standard for Electroplating Pollutants requires total chromium ≤0.5 mg/L).
Solution: Adopt a "RO + NF (Nanofiltration)" dual-membrane process. First, NF intercepts macromolecular organics, then RO deeply desalinates, achieving a wastewater reuse rate ≥85%.
Case: A Jiangsu electroplating enterprise increased wastewater reuse from 60% to 92% after retrofitting, reducing annual fresh water consumption by 32,000 tons. Total chromium emissions stabilized at 0.3 mg/L (exceeding national standards).
Industry Pain Point: Dyeing wastewater contains azo dyes and auxiliaries, with color up to 5,000 Pt-Co units and COD >2,000 mg/L. Traditional biochemical methods struggle to decolorize.
Solution: RO membranes intercept >99% of dye molecules (molecular weight >1,000 Da). Combined with "anaerobic + RO" processes, decolorization rate reaches 98%, and reused water can directly serve rinsing processes.
Data: A Zhejiang dyeing factory reduced water cost per ton of fabric from ¥8 to ¥3.5, with annual water-saving benefits exceeding ¥1.2 million. Reused water color ≤10 Pt-Co units and COD ≤50 mg/L.
Industry Pain Point: Papermaking white water contains fibers and fillers (e.g., CaCO₃), wasting resources (10–20 m³ water per ton of paper) and causing equipment scaling.
Solution: RO membranes intercept suspended particles and dissolved solids. Reused water serves wire section spraying and net washing, forming a "white water → clean water → process water" loop.
Practice: A Shandong coated paper mill using LF-RO-8040 membranes reduced water consumption to 5.2 m³ per ton of paper (industry advanced value: 8 m³), increased filler recovery by 35%, and saved ¥680,000 annually.
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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