Other Filtration Methods

Ultrafiltration

• Has a pore size of around 0.01 microns.
• Will remove larger particles and may remove some viruses.

Microfiltration

• Has a pore size of around 0.1 microns.
• When water undergoes microfiltration, many micro organisms are removed but viruses will remain.

Nano – filtration

• Has a pore size of around 0.001 microns.
• Will remove most organic molecules and nearly all viruses, a range of salts and most natural organic matter.
• Removes divalent ions that make water hard.
• Is often used to soften hard water.