hollow fiber ultrafiltration membrane
The hollow fiber ultrafiltration membrane is a type of ultrafiltration membrane. It is the most mature and advanced technology in ultrafiltration technology. the hollow fiber tube wall is covered with micropores. The hollow fiber has outer diameter and inner diameter, and the pore diameter is expressed by the molecular weight of the retentate substance, and the molecular weight cut off can be several thousand to several tens of thousands. The raw water is pressurized and flows outside or inside the hollow fiber membrane to form an external pressure type and an internal pressure type, respectively. Ultrafiltration is a dynamic filtration process, and the retained material can be removed with the dope and can be continuously operated for a long time.
Due to its special properties, hollow fiber ultrafiltration membranes are widely used in the preparation of mineral water; pretreatment of reverse osmosis equipment; tap water purification treatment; pretreatment of seawater desalination; purification treatment of wastewater reuse; removal of colloids and bacteria in water, Filter out the large molecular weight impurities, proteins and polysaccharides in the extract process, etc. filter out the moisture and small molecular weight impurities in the liquid; remove the turbidity of low-grade liquor; fruit wine, Refinement of beer and other alcohols; purification of tea juice, preparation of concentrated tea and so on.