Technical Bulletin No. 0678: Volatile Organic Emissions from Pulp and Paper Mill Sources, Part IV – Kraft Brownstock Washing, Screening and Rejects Refining Sources

NCASI/Weston Heated SUMMA Canister Method, NCASI Chilled Impinger Method, RTI Draft Method for aldehydes and ketones, and EPA Method 25A were used to determine the emissions of volatile organic HAPs, selected other volatile organics, and EPA Method 25A total VOCS from brownstock screening and refining sources at three kraft mills and brownstock washing sources at seven kraft mills. Selected process streams were also analyzed for their acetaldehyde, acetone, methanol, and methyl ethyl ketone contents. The total HAP and EPA Method 25A VOC emissions from all screening and refining area sources at one mill which did not collect the vent gases averaged 0.