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Overcoming Challenges in RO Membrane Manufacturing


How can researchers overcome obstacles in making RO membranes more reliable and cost-effective?

RO membranes are engineered to selectively allow water molecules to pass through while blocking the passage of contaminants such as salts, minerals, and other impurities. This selective permeation is achieved through a complex interplay of chemical reactions, primarily governed by the membrane's material composition and structure.


However, researchers often encounter significant challenges that delay progress and reliability. From inconsistent coatings to chemical odors, these obstacles can impede innovation and drive-up costs.

RO Membrane Manufacturing Challenges

01. Film Formation: Making uniform and defect-free polymer films, which are crucial for membrane strength and effectiveness, presents a big problem. Differences in film thickness or flaws can harm the overall quality of the membrane.


02. Chemical Odor Concerns: A common issue with interfacial polymerization is the powerful smell that comes from reactions between amines and acid chlorides. Achieving even layer formation becomes tough due to concerns about the intensity of the smell and how it might affect the quality and use of the membrane.


03. Membrane Fouling: During operation, membranes are vulnerable to fouling, where contaminants accumulate on the surface, diminishing efficiency and longevity. Manufacturing processes must address fouling tendencies to ensure optimal membrane performance.

MEMS’ RO Membrane Manufacturing Solutions


At MEMS, we recognize the hurdles faced by both researchers and industry professionals in traditional membrane manufacturing. That is why we have created a solution to tackle these problems directly, transforming how RO membranes are made.

RO Membrane Manufacturing Challenges
MEMS' RO Coating System

  • Perfect Thin Film Formation


This method combines two liquid phases: one containing an amine monomer and the other an acid chloride monomer. At the interface of these phases, the amine and acid chloride react to form a thin polyamide film. This film serves as the selective layer of the membrane, allowing water molecules to permeate while blocking dissolved salts and other contaminants. This method ensures that membranes produced with our system exhibit superior performance and longevity, meeting the rigorous standards of researchers and industry professionals alike.


  • Avoid Pungent Chemical Smell

Traditional membrane manufacturing often emits strong chemical odors, particularly from the reaction between amines and acid chlorides, posing risks to workers and product quality. MEMS addresses this issue with a closed system that contains chemicals, eliminating unpleasant odors and ensuring a safer working environment.


  • Reliable Membrane Performance

Our system's drum configuration not only optimizes chemical usage but also helps save money by reducing the amount of chemical solutions needed compared to other methods. MEMS's innovative approach enables cost-effective production without compromising on quality, offering a sustainable solution for membrane manufacturing.


By addressing common challenges and providing researchers with a reliable and efficient solution in RO Membrane Manufacturing , we are empowering the research community to make breakthroughs in membrane technology.


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