Process
Microfiltration is the process of filtration with a micrometre sized filter. The filters can be in a submerged configuration or a pressure vessel configuration. They can be hollow fibers, flat sheet, tubular, spiral wound, hollow fine fiber or track etched. These filters are porous and allow water, monovalent species (Na+, Cl-), dissolved organic matter, small colloids and viruses through but do not allow particles, sediment, algae or large bacteria through.
Microfiltration systems are designed to remove suspended solids down to 0.1 micrometres in size, in a feed solution with up to 2-3% in concentration. It is very suitable for use in place of traditional clarifiers or as a pre-filter to a water recycling/recovery reverse osmosis system.
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