To meet ever increasign air quality regulatory requirements, there is a need for new technology development. Deodair~direct R, a photooxidation technology develoepd by Solarchem Environmental Systems, has gone through a further stage of development under a university/industry program, the major resutls of which are reported here. This basic methodology for removal of hazardous pollutants from an air stream requires a combined dosage of ozone and ultraviolet light. Diverse and numerous applications exist for removal of toxic and malodorous substances, typically present at the ppm level in an air effluent. In this program, an intensive study has been made of the factors affecting removal efficinecy for xylene, a typial target compoud.A 3000 cfm (80m~3/min) duct test facility has been designed and constructed. Input parmaeters for the purpose of this research study are target compound (contaminant) concentration, ozone concentration, Uv light intensity, and flow rate. To date all studies have been performed at ambient temperature with naturally varying outdoor air. Modelling sutdies, typical applicatiosn and estimated treatment costs are described.
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