Microfiltration pleated cartridge

Despite the limited volumes that can be treated before a filter must be replaced, microfiltration is economical because the cost of disposable cartridges is low. Currently, a lO-in.-long pleated cartridge costs between US 10 and US 20 and contains 0.3-0.5 m2 of active membrane area. The low cost reflects the large numbers that are produced. 

The meltspun materials are usually formed into thin sheets, like paper or cardboard, and are then widely used in pleated form, as cartridges, shown typically in Figure 2.4. These media are capable of exceedingly fine degrees of filtration, and a great deal of microfiltration is now undertaken with them. 

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