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Ultra Filtration / Ultrafiltration / UF
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Ultra filtration or UF is a pressure driven membrane
separation process that separates particulate matter from soluble components in
the carrier fluid (such as water). Ultra filtration has larger pores than
nanofiltration and reverse osmosis. Ultra filtration is a low-pressure membrane
process used to separate high molecular weight compounds from a feed stream.
Typically, ultra filtration will remove high molecular-weight substances,
colloidal materials, organic and inorganic polymeric molecules Low
molecular-weight organics and ions such as sodium, calcium, magnesium chloride,
and sulfate are not removed. Because only high-molecular weight species are
removed, the osmotic pressure differential across the membrane surface is
negligible. |
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Ultra filtration (UF) is a pressure-driven barrier to
suspended solids, bacteria, viruses, end toxins and other pathogens to produce
water with very high purity and low silt density. It serves as a pretreatment
for surface water, seawater, and biologically treated municipal effluent before
reverse osmosis and other membrane systems
Ultra filtration, like reverse osmosis, is a cross-flow separation process. Here
liquid stream to be treated (feed) flows tangentially along the membrane
surface, thereby producing two streams. The stream of liquid that comes through
the membrane is called permeate. The type and amount of species left in the
permeate will depend on the characteristics of the membrane, the operating
conditions, and the quality of feed. The other liquid stream is called
concentrate and gets progressively concentrated in those species removed by the
membrane. In cross-flow separation, therefore, the membrane itself does not act
as a collector of ions, molecules, or colloids but merely as a barrier to these
species |
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Advantages:
• Low fouling membrane modules
• Excellent filtration performance
• High chemical resistance and temperature
• Tolerance for effective membrane cleaning
• High removal efficiency of bacteria and viruses
• Can be periodically back washed to improve
• Performance and extend operating life by removing the fouling layer
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Applications:
• Dairy Industry
• Food and beverage processing
• Pharmaceutical production
• Water fountains & Public drinking areas.
• Canteens, Hotels, Restaurants, Mess.
• Offices, Hospitals, Theaters, Markets
• Schools, Collages, Hostels, Dormitories
• Temples. Mosk, Churches, Gurudwaras
• Sports Clubs, Stadium, Resorts.
• Cooking & Preparing any drinks & eatables.
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