Ozone abatement solution for printing industry and UV inks

In the printing industry ozone is typically formed in corona treaters and in the use of UV inks.

Ozone is an unstable colorless gas with powerful oxidizing properties that will react with anything organic, and as a result is very corrosive. Ozone will also destroy any known bacteria and viruses and is used extensively for water treatment applications. However, exposure to humans should be limited to OSHA guidelines, which requires that workers not be exposed to an average concentration of more than 0.10 ppm for 8 hours. This limit should not be exceeded at any time.

Typically, ozone at ambient temperature has a half-life of 20 min. and rapidly decomposes at 100°C and is totally decomposed at 200°C.

When the discharge of a corona treater is directed to a regenerative thermal oxidizer (RTO), along with VOC emissions, the ozone will be completely destroyed by process of combustion. No traces of ozone will be left. This method for ozone abatement has been successfully implemented for many printing applications. In cases where a plant does not have a RTO, ozone emissions may be directed into a carbon bed, or other equipment employing a burner, or a special catalyst.

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Categorised in: EPA