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Basic Information
Hollow fiber ultrafiltration membrane is a mature and advanced form of ultrafiltration technology. The outer diameter of the hollow fiber is 0.5-2.0mm, and the inner diameter is 0.3-1.4mm. The wall of the hollow fiber tube is full of micropores. The pore diameter is expressed by the molecular weight of the material that can be retained, and the molecular weight can be cut off from thousands to hundreds of thousands. The raw water flows under pressure on the outside of the hollow fiber or in the inner cavity to form an external pressure type and an internal pressure type, respectively. Ultrafiltration is a dynamic filtration process. The retained substances can be removed with concentration without clogging the membrane surface, and it can run continuously for a long time.
Principle of ultrafiltration equipment
Ultrafiltration is a membrane separation process based on the principle of sieving separation and pressure as the driving force. The filtration accuracy is within the range of 0.005-0.01μm, which can effectively remove particles, colloids, bacteria, heat sources and macromolecular organic substances in water. It can be widely used in the separation, concentration and purification of substances. The ultrafiltration process has no phase inversion and is operated at room temperature. It is especially suitable for the separation of heat-sensitive substances. It has good temperature resistance, acid and alkali resistance and oxidation resistance. It can be continuous for a long time under the conditions of below 60℃ and pH 2-11. use.
Advantages of ultrafiltration equipment
A. The ultrafiltration membrane element adopts the products of famous membrane company to ensure that customers get the current high-quality organic membrane elements, thereby ensuring the retention performance and membrane flux.
B. The recovery rate of the system is high, and the quality of the products obtained is excellent, which can realize the high-efficiency separation, purification and high-fold concentration of materials.
C. There is no phase change during the treatment process, no adverse effect on the composition of the material, and the separation, purification, and concentration process is always at room temperature. It is especially suitable for the treatment of heat-sensitive substances, which completely avoids the destruction of biologically active substances by high temperature. Disadvantages, effectively retain the biologically active substances and nutrients in the raw material system.
D. The system has low energy consumption and short production cycle. Compared with traditional process equipment, the equipment operation cost is low, which can effectively reduce the production cost and improve the economic efficiency of the enterprise.
E. The system has advanced technological design, high degree of integration, compact structure, less floor space, simple operation and maintenance, and low labor intensity.
F. The system is made of sanitary pipes and valves, and the site is clean and hygienic, meeting the requirements of GMP or FDA production specifications.
G. The control system can be individually designed according to the user's specific requirements, combined with advanced control software, on-site centralized monitoring of important process operating parameters, to avoid manual misoperation, and multi-directional to ensure the long-term stable operation of the system.
Application of ultrafiltration equipment
◆Mineral water: In the production of mineral water, ultrafiltration technology is applied. In engineering design, the pore size and type of membrane will be used to design the ultrafiltration design according to the source water quality analysis report of the mineral water.
◆Food: Ultrafiltration technology is gradually adopted in the production of dairy products, fruit juices, wine, condiments and other foods, such as the separation of protein and low molecular weight lactose in milk or whey from water, clarification and sterilization of fruit juice, and color in wine The removal of protein, polysaccharides and other colloidal impurities, and the removal of bacteria in soy sauce and vinegar show the advantages of economy, reliability, and quality assurance compared with traditional methods.
◆Pharmaceutical: In the production of medicine and biochemical industry, it is often necessary to separate and purify heat-sensitive substances. Ultrafiltration technology shows its outstanding advantages for this. The use of ultrafiltration to separate and concentrate biologically active substances (such as enzymes, viruses, nucleic acids, special proteins, etc.) is quite suitable for drugs extracted from animals and plants (such as alkaloids, hormones, etc.). The extracts often contain large molecules or In many cases, solid matter can be separated by ultrafiltration to improve product quality.
◆Pure water and ultrapure water: primary purification of industrial water, RO pretreatment of pure water and ultrapure water preparation, and terminal treatment of pure water and ultrapure water.
◆Environmental protection: advanced treatment of industrial wastewater, urban reclaimed water reuse system, electrophoresis paint and oil recovery.
◆Fermentation: separation and refining of biochemical fermentation broth, concentration and refining of enzymes, clarification and filtration of sugar and xylitol
