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Ultra filtration ( UF
) is a variety of membrane filtration in
which hydrostatic pressure forces a liquid against a
semipermeable membrane . Suspended solids and
solutes of high molecular weight are retained, while
water and low molecular weight solutes pass through
the membrane. This separation process is used in
industry and research for purifying and
concentrating macromolecular (10^3 - 10^6 Da)
solutions, especially protein solutions. Ultra
filtration is not fundamentally different from
reverse osmosis , micro filtration or nano
filtration
, except in terms of the size of the molecules it
retains.
More specifically, it can
refer to:
- Ultra filtration
(industrial)
- Ultra filtration
(Residential & Commercial)
When dissolved solids are
less in the water, UF in combination with Ultra
violet is very effective.
Application Areas of these
are residential, hotel, restaurants, syrup making,
tea, coffee & soft drink vending, food processing
industries, etc.
Major advantage of UF
compared with Reverse Osmosis are :
- Percentages of waste
water is very nominal comared to R.O.
- Ideal for corporation
water. Where chlorine in water is very dangerous
to R.O. membranes, but good cleaning chemical
for UF.
- UF does not reduce the
mineral contents of water.
- Very effective in
combination with Ultra Violet Purifier.
- Very effective as R.O.
pre treatment. Increases the R.O. membrane life
& membrane cleaning considerable.
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