Changes

[[Image:ozone icon.png|right|100px]]

[[Image:ozone generator.jpg|thumb|right|300px|Ozone generator by [http://ozonia.com/ozone.php#xf Ozonia.]]]

[[Image:ozone system.jpg|thumb|right|300px|Standard Water Treatment System with Bottling Station that includes ozone. '''Purpose''': bacteriological disinfection; removal of chlorine-resistant organisms. '''Components''': filtration, micro-filtration and ozone. <br>Photo: [http://www.livingwatersfortheworld.org/LWWPO_QF.php Living Waters for the World.]]]

[[Image:QuickPure ozone purifier.jpg|thumb|right|300px|Table top, low-cost, ozone purifier by [http://www.quickpure.com/WaterPurifiers.htm QuickPure.]]]

Ozone is a powerful [http://en.wikipedia.org/wiki/Oxidizing_agent oxidizing agent] and has many uses in water treatment, including oxidation of organic chemicals. Ozone can be used as a primary disinfectant. Ozone gas (O3) is formed by passing dry air or oxygen through a high-voltage electric field. The resultant ozone-enriched air is dosed directly into the water by means of porous diffusers at the base of baffled contactor tanks. The contactor tanks, typically about 5 m deep,

provide 10–20 minutes of contact time. Dissolution of at least 80% of the applied ozone should be possible, with the remainder contained in the off-gas, which is passed through an ozone destructor and vented to the atmosphere.