VOC Emission Reduction Study at the Hill Air Force Base Building 515 Painting Facility.

摘要

The goal of this project was to develop safe and cost effective strategies for controlling volatile organic compound (VOC) emission from Air Force painting facilities. To this end, a series of sampling and analysis tests were conducted to measure hazardous constituent compound concentrations in a typical crossdraft Air Force paint booth during painting; pollutant emission rates were simultaneously measured. Particulate, isocyanate, and VOC emission rates were measured in booth exhaust; concentration profiles of these constituents within the booth were determined during painting. The results of these tests indicate that significant pollutant stratification occurs in the crossdraft booth during painting. Based on these results, a cost effective means of controlling VOC emissions was developed in which the exhaust from the zone of the booth having the highest VOC concentrations is passed to an emission control device. The remainder is vented to the outside. This flow reduction/control technology requires the installation of a split flow ventilation system, which separates the exhaust from the high concentration zone from the remainder of the exhaust.