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Screening process and technical requirements of ultrafiltration membrane Dec 08, 2017

When making use of ultrafiltration membrane is a kind of size and specifications consistent product, the rated range of pore size of 0.01 micron microporous membranes, when to use in the side of the membrane with proper pressure, so that you can to a certain extent, screen out less than the solute molecules of aperture, separation with molecular weight greater than 500 Dalton, particle size is greater than 10 nano particles.

Ultrafiltration membranes in the field of industrial use is more, this product has become one of the new chemical unit operations, when making use of it is mainly used for enrichment, biological products, medical products, purification, and food industry, in use can also effectively used in water purification equipment and enrichment purification of Chinese herbal medicine research and development use.

The ultrafiltration membrane now will be improved and strengthened with the continuous improvement of its technology, and its contribution to human society will be greater and greater.

The structure of the product can be divided into two parts: symmetric and asymmetric. The former is isotropic, without the cortex, the pores in all directions are the same, which belong to the deep filtration.

Immersion ultra-filtration    .jpg

Ultrafiltration membrane in the screening process, mainly in using the pressure difference on both sides of the membrane as the main driving force, when making use of ultrafiltration membrane as the filter medium, under certain pressure, when the original fluid flow through the membrane surface, ultrafiltration membrane surface with many tiny pores allow only water and small molecules through and become through the liquid, and concentrate in the volume is greater than the membrane surface micro aperture that substance is trapped in the liquid side of the membrane, liquid becomes, thus achieve the purpose of purification, separation and enrichment of concentrate.

Per metre long silk ultrafiltration membrane on the wall there are about 6 billion 0.01 micron pores, the pore size is only allowed water molecules, the beneficial minerals and trace elements in the water, and are now known to the world's smallest bacteria volume in 0.2 micron, so bacteria as well as the volume is much bigger than bacteria colloid, rust, suspended solids, such as sand, macromolecular organic matter can be trapped and ultrafiltration membrane, the purification process was realized.