Application fields of ultrafiltration membranes

Ultrafiltration membrane is a kind of filtration between microfiltration and nanofiltration, and is a membrane separation technology suitable for material separation, concentration and purification. It is generally characterized by molecular weight cutoff in practical applications, as long as it is used to separate macromolecules, colloids and particles in solution from small molecules such as solvents. The macromolecules, colloids and particles are trapped on the surface of the membrane, and the concentrated solution is carried away by the circulating flow of materials, so as to achieve the purpose of material separation, concentration and purification. The application fields of ultrafiltration mainly involve food, beverage, biomedicine, fine chemical industry, industrial wastewater treatment and reuse, etc. The application of ultrafiltration technology has taken a dominant position in the juice clarification process. The freshly squeezed juice contains pectin, pulp scraps, starch, protein, suspended solids, microbial metabolism and other substances that make the juice turbid.

Ultrafiltration is used to clarify the juice, so that small molecules such as sugars, organic acids and water can pass through the membrane. Most of the macromolecular substances are retained to obtain clear and sterile juice; the ultrafiltration process does not require filter aids; the process is short and labor costs are low; it is a relatively economical juice clarification method.

Industrially produced enzyme preparations generally need to be separated and purified, and traditional methods such as vacuum evaporation and solvent extraction have many drawbacks. Now using ultrafiltration and membrane technology to separate and concentrate enzyme preparations, it can be operated at room temperature. Overcome the influence of heat on the quality of enzyme preparation products; remove small molecular impurities to ensure the purity and quality of the filtrate; there is no phase change in the filtration process, and the energy consumption and cost are lower than traditional methods; the equipment is simple and easy to operate Therefore, it has quickly become the first choice for separation and concentration processes in industries such as biopharmaceuticals.

Application field:

  • Clarification and concentration of dairy products, fruit juices, vegetable juices, etc.
  • Extraction of active ingredients from animals and plants (aloe, mangosteen, tea, etc.)
  • Extraction and concentration of soybean protein, oligosaccharides, isoflavones, etc.
  • Purification and separation of antibiotics, amino acids, VC and other fermentation broths
  • Purification-Isolation of Active Components of Traditional Chinese Medicine (Bupleurum, Salvia, Scutellaria, etc.) Injection
  • Medical pure water sterilization, depyrogenation, drug concentration and separation
  • Purification and concentration of polysaccharides (Ganoderma lucidum, frondosa, shiitake, etc.)
  • Fluorescent whitening agent desalting and concentration
  • Electrophoretic paint recycling and water reuse
  • Reuse of PVA in textile desizing waste liquid, recovery of fiber processing oil, recovery of lanolin in wool scouring waste water
  • Semiconductor industry ultrapure water, integrated circuit cleaning water terminal treatment
  • Water treatment engineering: mineral water preparation, drinking water purification, and ultrafiltration as pretreatment for reverse osmosis

Xi’an CHIWATEC Water Treatment Technology is a high-tech enterprise specialized in various water processing devices. Aside from these individual products, which cover a number of types and series, we can also help with related comprehensive engineering projects. Thanks to our hard work and dedication upon our founding, we are now one of the fastest-developing water treatment equipment manufacturers in Western China.

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