Ultrafiltration is a membrane separation process driven by pressure difference, and it is the most widely used membrane separation technology. In the food industry, ultrafiltration technology is mainly used in many operations such as pure water manufacturing, whey concentration and juice clarification. The classification of ultrafiltration is mainly based on the classification of ultrafiltration membrane components, which are mainly divided into roll type, plate and frame type, tube type and hollow fiber type.
Increasing the liquid flow rate is beneficial to reduce the concentration polarization and increase the permeation flux.
The relationship between permeate flux and operating pressure of ultrafiltration membrane depends on the nature of the membrane and gel layer. Only when the operating pressure reaches a certain level in the ultrafiltration process can the small molecules in the liquid be separated through the membrane.
As the ultrafiltration process proceeds, a gel layer gradually forms on the membrane surface, causing the permeate flux to drop.
As the ultrafiltration process proceeds, the concentration of the main stream gradually increases, and the viscosity becomes larger at this time, which increases the thickness of the gel layer and thus affects the permeate flux.
BOC Sciences provides natural product ultrafiltration services to help our customers isolate and purify natural products. Our laboratory team can provide separation services for a variety of technologies, including reverse osmosis, ultrafiltration, and nanofiltration. We can customize your separation solution based on your needs and the nature of your project.
Our laboratory is equipped with a variety of analytical instruments. In addition to the ultrafiltration membrane separation mixture services described above, we can also provide: ultrafiltration performance and pilot testing through testing devices membrane cleaning studies pretreatment optimization studies.
If you have a requirement about our services, please contact us by phone or email, our colleagues will reply to you within three working days.