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Each filtration module in a disposable deep filtration membrane pack is composed of two completely independent layers of filtration materials, usually with the upper layer of filtration material having a more open filtration aperture than the lower layer. This composite structure design improves the pollutant holding capacity of each filtration unit, avoids premature clogging of the filter, and effectively extends the load capacity of the membrane pack.
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At present, among the common drug virus removal methods, virus removal filtration technology can be used as an effective physical step to remove viruses. Due to its simple and mild operation, clear mechanism, and easy verification, it has been widely used for virus safety assurance in purification processes. The currently widely used virus removal filter has a retention aperture of 20nm, which achieves virus retention through a size exclusion mechanism. Its mechanism of action is based on the fact that the virus is larger than the filter membrane aperture, and the product passes through the filter membrane while the virus is retained, which can remove enveloped or non enveloped viruses. At the same time, based on the molecular size retention mechanism, the 20nm retention aperture of the virus removal filter membrane can not only effectively remove small viruses, but also effectively remove mouse leukemia viruses with a diameter of 80-100nm and other types of virus particles.
Beer filtration application
Water filtration
Plasma separation filtration
Human blood plasma contains many valuable therapeutic proteins, such as albumin, various immunoglobulins, factor VIII, fibrinogen, and other proteins. The process of extracting and purifying these proteins is called plasma fractionation. Plasma fractionation is achieved through a series of extractions and purifications of these proteins.