THE WATER COMPANY:
Ultrafiltration (UF) filtrates in the
0.01-micron range. The element comprises of hollow fibers of membrane
material. UF is a type of membrane filtration in which hydrostatic
pressure forces a liquid against a semipermeable membrane. It does not
differ fundamentally from reverse osmosis, microfiltration or
nanofiltration, except in terms of the size of the molecules it retains.
UF can be used as pretreatment for reverse osmosis systems or as a
final filtration stage for deionized water. It is an excellent
purification method in areas where the TDS is low or in drought-stricken
areas, as it produces no waste.
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