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COST EFFECTIVE VOC EMISSION CONTROL STARTEGIES FOR MILITARY, AEROSPACE,AND INDUSTRIAL PAINT SPRAY BOOTH OPERATIONS: COMBINING IMPROVED VENTILATION SYSTEMS WITH INNOVATIVE, LOW COST EMISSION CONTROL TECHNOLOGIES
Ayer, J. AND C H. Darvin*. COST EFFECTIVE VOC EMISSION CONTROL STARTEGIES FOR MILITARY, AEROSPACE,AND INDUSTRIAL PAINT SPRAY BOOTH OPERATIONS: COMBINING IMPROVED VENTILATION SYSTEMS WITH INNOVATIVE, LOW COST EMISSION CONTROL TECHNOLOGIES. Presented at 88th AWMA Annual Meeting, San Antonio, TX, 6/18-23/1995.
The paper describes a full-scale demonstration program in which several paint booths were modified for recirculation ventilation; the booth exhaust streams are vented to an innovative volatile organic compound (VOC) emission control system having extremely low operating costs. (NOTE: Controlling emissions from spray coating operations has historically been cost prohibitive, due to high exhaust flow rates coupled with low VOC and hazardous air pollutant (HAP) concentrations. Preliminary studies indicate that significant emission control cost reductions are achievable by reducing booth exhaust flow rates; these studies demonstrated that recirculation combined with exhaust flow partitioning can safely achieve a >50% reduction in exhaust flow rates). The booth exhaust flow rates were safely reduced from 114,000 to 44,000 cfm. The program involved: (1) a baseline study, involving full characterization of booth operating conditions including a VOC/HAP emission and in-booth constituent stratification profile, and operator hazardous expsoure assessments for all booths; (2) booth ventilation system modification, including construction of recirculation/partition ventilation systems, safety interlock controls, booth operating equipment, and the VOC control system; and (3) a post-conversion study to demonstrate safe recirculation system operatin and adequate destruction efficiency.
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