Ultrafiltration Membrane Filtration
Ultrafiltration technology(UF) is a kind of nano-scale membrane pure physical separation technology. The hollow fiber ultrafiltration process uses hollow fiber membrane filaments as the filter medium, uses the pressure difference between the inside and outside of the membrane filaments as the driving force, and measures different physical diameters in the solution according to a certain filter aperture. The process of separating large and small substances to achieve the purpose of purification, separation, purification and concentration of the solution. Ultrafiltration membrane filtration can have extremely high fluxes but in most practical applications the flux varies between 50 and 200 GFD at an operating pressure of about 50 psig in contrast, reverse osmosis membranes only produce between 10 to 30 GFD at 200 to 400 psi.
When is Ultrafiltration Membrane Filtration used
The distinction in pore size and types of particles removed means each type of filtration serves a unique purpose.
Ultrafiltration is the filtration method of choice for people who prefer minerals left in their water but still want microscopic contaminants taken out. A UF system may be selected over an RO system because it wastes less water to the drain. For example, we have clients someone may choose UF in California where water use is regulated. someone in South Carolina, where the water has few dissolved minerals to begin with, may choose UF since RO wouldn’t be necessary. Sometimes, Ultrafiltration membrane filtration is used to recycle effluent water after filtration, so the water can be reused for irrigation.
Reverse osmosis is used in situations where all particles including dissolved substance must be stripped from the water. Some people prefer RO water from their refrigerator or tap, especially if they’re on well water supply. RO is also favored for saltwater aquariums, where an exact amount of salt can be added back to the clear water. Nanofiltration is frequently used to remove heavy solids in dairy and for some softening purposes. Microfiltration removes suspended solids like algae and sediment.
