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Hollow fiber RO membrane

Hollow fiber reverse osmosis (RO) membrane functions as a filtration membrane in water treatment processes, particularly in reverse osmosis systems. Reverse osmosis, a water purification method, utilizes a semi-permeable membrane, applying pressure to overcome natural osmotic pressure and eliminate water impurities and contaminants.

The hollow fiber RO membrane consists of thousands of tiny, bundled hollow fibers, typically made of synthetic materials like polyamide or polysulfone with diameters ranging from 0.1 to 1.5 millimeters. Water can pass through these fibers while dissolved salts, minerals, and contaminants are blocked. The hollow fiber structure provides a large surface area for efficient filtration.

Hollow fiber RO membranes offer several water treatment advantages, including high surface areas for efficient filtration and production rates. They resist fouling, the accumulation of impurities on the membrane surface, more effectively than other membrane types. This prolongs the membrane's lifespan and reduces cleaning and maintenance requirements.

During the reverse osmosis process, water undergoes pressure-driven filtration through the hollow fibers, leaving contaminants, salts, and impurities as a concentrated brine solution. Clean, purified water passes through the membrane and is collected on one side, while the concentrated brine is flushed away.

Commonly used in various industries, hollow fiber RO membranes are vital in desalinating seawater, producing ultrapure water for electronics and pharmaceutical industries, and residential water purification systems. They play a crucial role in providing clean and safe drinking water or process water by effectively removing a wide range of contaminants.