How are proteins retained after ultrafiltration

1.	How are proteins retained after ultrafiltration
Answer» Ultrafiltration\xa0(UF) is a membrane filtration\xa0process\xa0similar to Reverse Osmosis, using hydrostatic pressure to force water through a semi-permeable membrane. Suspended solids and solutes of high molecular weight are retained, while water and low molecular weight solutes pass through the membrane.\xa0Ultrafiltration\xa0is an effective means of reducing the silt density index of water and removing particulates that can foul reverse osmosis membranes.\xa0Ultrafiltration\xa0is frequently used to pretreat surface water, seawater and biologically treated municipal water upstream of the reverse osmosis unit.

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