Estimation of Emissions and Emission Factor of Volatile Organic Compounds from Small-scale Dry Cleaning Operations Using Organic Solvents

Volatile organic compounds (VOCs) emissions from organic solvents in the small-scale dry cleaning process have been characterized, and their emission factor was defined based on survey results and experimental observation. Fifty sites of the small-scale dry cleaning business (less than 30 kg of capacity) were surveyed; and the real-scale dry cleaning process was tested. During the operation of the drying by tumbling in a hot air stream, highly concentrated VOC laden gas was generated; and was affected by operating conditions. It was finally concluded that the emission factor of VOCs in the small-scale dry cleaning process should be considered as 0.21 kg VOCs/kg laundry. VOC emissions can be estimated to be 1.32×10³ kg VOCs/site-yr and 3.7844×10⁷