UV/Ozone General Information Ultraviolet cleaning is a dry process used to remove very small amounts of organic contaminants. It is not applicable to particle removal. UV energy from a UV lamp is emitted in two wavelengths: 185 nanometers (nm) and 254 nm. The 185-nm energy is absorbed by oxygen and produces ozone, which oxidizes organic materials. The 254-nm energy is absorbed by organic materials and increases their molecular activity so that they will react with ozone. The process usually takes place in a chamber called an State Information | Glossary | Conversion Checklist | Comments Home | Process Advisor | Alternatives | Links | Search All SAGE material, Copyright© 1992, Research Triangle Institute Last Update: 18 March 1995 sage@rti.org http://clean.rti.org/alt.cfm?id=uv&cat=gi