||Emissions test at an asphalt concrete production plant : Asphalt Plant "A", Clayton, North Carolina /
||Midwest Research Inst., Kansas City, MO.;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
|| U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards,
Asphalt plants--Environmental aspects--North Carolina--Clayton. ;
Asphalt industry--Environmental aspects--North Carolina--Clayton. ;
Industrial plants ;
Hot mix asphalts ;
Air pollution control ;
Test procedures ;
Test locations ;
Rotary dryers ;
Clayton(North Carolina) ;
Instructional methods testing
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||362 pages ; 28 cm
Asphalt paving materials are produced by drying and mixing various amounts of raw (and sometimes recycled) materials with asphalt cement in rotary drum dryer. The product is then conveyed to heated storage silos before loading into trucks for distribution. The dryer emissions are drawn through a knockout box, for primary particulate control, and then a baghouse before being emitted to the atmosphere. Testing was conducted at the inlet and outlet of the baghouse to determine the measurable emissions released. The purpose of this project was to perform an emissions test on the inlet and outlet of a baghouse that controls emissions from the parallel-flow rotary dryer process used at the Asphalt Plant A facility in Clayton, North Carolina. MRI used EPA Fourier transform infrared (FTIR) Method 320 and EPA Method 25A. Method 320 is an extractive test method using FTIR spectrocopy. Method 320 uses quantitative analytical procedures described in the EPA FTIR Protocol. Method 25A is an extractive test method using a Flame Ionization Analyzer (FIA). The results were used to characterize and quantify hazardous air pollutant (HAP) emissions and the performance of the control unit for maximum achievable control technology (MACT) standard development for this industry.
"Michael L. Toney, work assignment manager." Microfiche.