Micro filtration (MF) involves the physical removal of particles approximately 0.1 to 10 microns in size from a liquid or gas. Removal includes bacteria and fine solids.

MF has two common forms.

Crossflow separation works by running a fluid stream parallel to the membrane. There is a pressure differential across the membrane which causes some of the fluid to pass through the membrane, while the remainder continues across the membrane, cleaning it.

Dead-end filtration simply allows all of the fluid to pass through the membrane, while stopping all of the particles that are too large to fit through the pores.

Micro filtration membranes can be manufactured from a wide variety of materials including metals, ceramics, glass fibres, and polymeric fibres. We tend to use micro filtration as a pre-cursor to finer filtration and treatment of waste water and effluent streams.