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4. Disinfection: ozone, an alternative to chlorine
Naturally present in the atmosphere, ozone is a powerful and versatile oxidizing agent used to disinfect and deodorize drinking water since the early 20th century. A non-selective molecule, ozone (O 3 ) immediately oxidizes any compound that comes into contact with it. This property makes it a more powerful bactericide and virucide than chlorine, particularly against bacterial cysts and cryptosporidium. Ozone's spectrum of action on micro-organisms is broad, with bacterial death triggered by a change in membrane permeability.
There are many industrial applications for ozone: pulp bleaching, decolorization, reduction of hard chemical oxygen demand (COD).
In the food industry, ozone is used for :
packaging of drinking water;
...
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Disinfection: ozone, an alternative to chlorine
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The Ultimate Scientific and Technical Reference