Ultra filter membrane is a kind of membrane filtration between microfiltration and nanofiltration, which is the membrane separation technology suitable for the separation, concentration and purification. In the practical use, it is indicated by the intercepted molecular weight, the mainly use of which is to separate the macromolecules, colloids and particles in the solution and micromolecular substances in the solvent. Make macromolecules, colloids and particles intercepted on the surface of membrane, which will be taken away along with the materials circulation flow, then become the concentrate, realize the purpose of separation, concentration and purification. The application fields of ultra filtration devices are mainly used in food, beverage, biomedicine, fine chemicals, industrial sewage treatment and reuse etc.

 Ultra filtration membrane technology: in our country, the application of ultra filtration technology has played a leading role in juice clarification technology. The fresh juice squeezed out includes pectin, pieces and waste, starch, protein, solid suspended substances, microorganism metabolism and so on, which can make the juice turbid.

    Use the ways of ultra filtration to clarify the juice, which can make the micromolecular substances permeate the membrane, such as sugars, organic acid and water, intercept the majority of macromolecular substances, then we can get the clear and sterile fruit juice; in the ultra filtration process, there is no need for filter aids; the technology process is short, the labor cost is low; this is the economic way to clarify the fruit juice.

The zymin as the industrial product, which needs to be separated and clarified, and the traditional vacuum evaporation and solvent extraction have many disadvantages.

Now the ultra filtration technology is adopted to separate and concentrate the zymin, which is usually operated under the normal temperature, which can also overcome that heat affects the fermentation preparation product quality; remove the micromolecular impurities to guarantee the purity of filtrate and the good performance of quality; the filtration process has no phase-change, the energy consumption and cost are lower than traditional methods; the equipment run is simple, which is easy to control and operate, therefore, quickly this method has been the optimal technology of separation and concentration for the biomedicine industry etc.

Application fields:

1. Concentration and clarification of dairy, juice and vegetable juice

2. Effective components extraction of animal and plant(aloe, momordica, grosvenori etc)

3. Extraction and concentration of soyabean protein, oligose, isoflavone etc

4. Purification and concentration of antibiotics,       amino acid, VC and other fermentation liquor

5. Effective components purification and separation of Chinese traditional medicine injecta (bupleuri, salvia, scutellariae etc)

6. Medical pure water for removing bacteria and heat sources, concentration and separation of medicines

7. Purification and concentration of polysaccharides substances (ganoderma, maitake, lentinus etc)

8. Desalinization and concentration of fluorescent whitening agent

9. Recovery of electrophoretic paint and clear water reuse

10. Reuse of PVA in the textile desizing sewage, fiber processing oiling agents recovery, lanolin recovery in the wool scouring waste water

11. Water terminal treatment for cleaning integrated circuit, ultrapure water for semiconductor industry

12. Water treatment projects: mineral water preparation, drinking water purification, and the ultra filtration as the pretreatment of RO

13. Sewage treatment engineering: industrial waste water treatment, municipal waste water treatment and reuse.