Microfiltration

<p><b >Microfiltration</b>&nbsp;is a&nbsp;<a href="http://en.wikipedia.org/wiki/Membrane_technology" title="Membrane technology" >membrane technical</a>&nbsp;<a href="http://en.wikipedia.org/wiki/Filtration" title="Filtration" >filtration</a>&nbsp;process which removes&nbsp;<a href="http://en.wikipedia.org/wiki/Contaminant" title="Contaminant" class="mw-redirect" >contaminants</a>&nbsp;from a&nbsp;<a href="http://en.wikipedia.org/wiki/Fluid" title="Fluid" >fluid</a>&nbsp;(liquid & gas) by passage through a microporous&nbsp;<a href="http://en.wikipedia.org/wiki/Semipermeable_membrane" title="Semipermeable membrane" >membrane</a>. A typical microfiltration membrane&nbsp;<a href="http://en.wikipedia.org/wiki/Pore" title="Pore" >pore</a>&nbsp;size range is 0.1 to 10&nbsp;<a href="http://en.wikipedia.org/wiki/Micrometre" title="Micrometre" >micrometres</a>&nbsp;(µm). Microfiltration is fundamentally different from&nbsp;<a href="http://en.wikipedia.org/wiki/Reverse_osmosis" title="Reverse osmosis" >reverse osmosis</a>&nbsp;and&nbsp;<a href="http://en.wikipedia.org/wiki/Nanofiltration" title="Nanofiltration" >nanofiltration</a>because those systems use pressure as a means of forcing water to go from low pressure to high pressure. Microfiltration can use a pressurized system but it does not need to include pressure.<sup id="cite_ref-water_0-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Microfiltration#cite_note-water-0" >[1]</a></sup></p>