Welcome to Francis Academic Press

Academic Journal of Architecture and Geotechnical Engineering, 2021, 3(1); doi: 10.25236/AJAGE.2021.030109.

Air Pollution Control for a Hot Mix Asphalt Plant


Tianyang Liu

Corresponding Author:
Tianyang Liu

Development and Reform Commission of Tongliao City, Inner Mongolia, China


The report explores how to reduce pollution by improving the emission control system in Hot Mix Asphalt (HMA) plants. The majority of emissions come from the combustion of fuel and particulate matter (PM) diffusion. The key finding is that combining a wet scrubber system and baghouse system will reduce the major pollutants significantly. Thousands of HMA plants across the country are in operation every day in rural, suburban, and urban areas, affecting all neighbors in their local communities. How an asphalt plant impacts the neighborhood and the environment mainly depends on their sustainable operation. Asphalt plant emissions are very low and getting lower due to innovative control systems and manufacturing technology. The objective of this report is to exppore the emission control system of a Hot Mix Asphalt plant. The main point is how to improve the scrubber system and baghouse filter for controlling criteria pollutants in the Hot Mix Asphalt plant during production to reduce the emissions.


Hot Mix Asphalt, Wet scrubber, Baghouse Filter, Particulate Matter, Emissions, Sulfur Dioxide, Environmental

Cite This Paper

Tianyang Liu. Air Pollution Control for a Hot Mix Asphalt Plant. Academic Journal of Architecture and Geotechnical Engineering (2021) Vol. 3, Issue 1: 52-66. https://doi.org/10.25236/AJAGE.2021.030109.


[1] Benson, G. (2003, April). Improving Fan System Performance. One of a Series of Industrial Energy Efficiency Sourcebooks, 10-30. Retrieved November 15, 2016, from: http://smartenergy.illinois.edu/pdf/ Archive/Improving Fan System Performance.pdf 

[2] Brauer, H. & Varma, Y. B. (1981). Design and Operation of Wet Dust Scrubbers. Air Pollution Control Equipment, 107-147. Doi: 10.1007/978-3-642-67905-6_5 

[3] Cooper, C. D. & Alley, F. C. (2002). Air pollution control: A design approach. Prospect Heights, IL: Waveland Press. 

[4] Doss, J. L., Sunderland, A. J., & Hoya, T. K. (1980). Emissions from the Use of Emulsified Asphalt in Hot-Mix Batch Plants in Indiana. Journal of the Air Pollution Control Association, 30(12), 1352-1353. doi:10.1080/00022470.1980.10465197 

[5] Davis, W. T. (2000). Air Pollution Engineering Manual. New York: Wiley: Print, from: http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471333336.html

[6] Feng, X., Liu, T., & Ringer, J. (2015, April 30). Air pollutants controls in Hot Mix Asphalt plant. (pp20-30). Retrieved October 10, 2016. 

[7] Fan Performance Characteristics of Centrifugal Fans. (2014). Retrieved November 15, 2016, from http://www.tcf.com/docs/fan-engineering-letters/fan-performance-characteristics-of-centrifugal-fans---fe-2400.pdf?Status=Master 

[8] HOT MIX ASPHALT PLANT OPERATIONS. (2015, August 2). Retrieved October 16, 2016, from: http://kidefm.org/wp- content/uploads/2015/08/2.3-chapter_035-3-Asphalt-Mixture-Plant- Operations-sheet.pdf 

[9] Hot Mix Asphalt Plants - Emission Assessment Report. (2000, December). Retrieved October 14, 2016, from: https://www3.epa.gov/ttn/chief/ap42/ch11/related/ea-report.pdf 

[10] Kandhal, P. S. (1999). Evaluation of baghouse fines for hot mix asphalt. Landham, MD: National Asphalt Pavement Association. From: http://driveasphalt.org/assets/content/resources/QIP-123_Heavy_ Duty_Mixes.pdf

[11] Kennedy, T. W., Scherocman, J. A., & Tahmoressi, M. (1986). Drum mix plants: Equipment and operations. Austin, TX: The Center. From: http://library.ctr.utexas.edu/digitized/texasarchive/phase2/ 440-1F.pdf

[12] Lime / Limestone Wet Scrubbing System for Flue Gas Desulfurization. (2014, December). Retrieved November 17, 2016, from http://www2.emersonprocess.com/siteadmincenter/PM Rosemount Analytical Documents/Liq_ADS_4900-02.pdf 

[13] Myers, R. (2004, February). Hot Mix Asphalt Plants Final Report (Rep. No. 04). Retrieved February 14, 2016, from U. S. Environmental Protection Agency Office of Air Quality Planning and Standards Emissions Measurement Center website: http://www3.epa.gov/ttn/chief/ap42/ch11/bgdocs/b11s01.pdf 

[14] McGowan, T. F. (2016, August 1). Air-Pollution Control: Assessing the Options - Chemical Engineering. Retrieved September 25, 2016, from: http://www.chemengonline.com/air-pollution-control-assessing-options/?printmode=1 

[15] Mist Eliminator. (2015). Retrieved from Encyclopedia of Chemical Engineering Equipment: http://encyclopedia.che.engin.umich.edu/Pages/SeparationsMechanical/MistEliminators/MistEliminators.html 

[16] Preventing pollution at hot mix asphalt plants: A guide to environmental compliance and pollution prevention for asphalt plants in Missouri. (2004). Jefferson City, MO: Missouri Dept. of Natural Resources. Technical Assistance Program. 

[17] Polyphenylene Sulfide (PPS) Typical Properties Generic PPS. (2016). Retrieved November 17, 2016, from: https://plastics.ulprospector.com/generics/41/c/t/polyphenylene-sulfide-pps-properties-processing 

[18] Packed-Bed/Packed-Tower Wet Scrubber. (1993). Retrieved November 13, 2016, from: https:// www3.epa.gov/ttnchie1/mkb/documents/fpack.pdf 

[19] Packed Tower Gas Scrubber. (2015). Retrieved 2015, from Air Poll Engineering: http://www. indiamart.com/airpollengineering/packed-tower-gas-scrubber.html 

[20] Reverse air baghouse dust collectors - Menardi Filters. (2016). Retrieved November 14, 2016, from: http://menardifilters.com/filtration-information/dust-collector-types/reverse-air-baghouse-dust-collectors/ 

[21] Reducing Atmospheric Emissions from Asphalt Plants. (2016). Emissions into the environment Retrieved November 11, 2016, from: http://marini.co.in/asphalt-technologies/atmospheric-emissions/

[22] Section 2 Generic Equipment and Devices. (2002). Retrieved November 13, 2016, from: https://www3.epa.gov/ttncatc1/dir1/cs2ch4.pdf 

[23] The Environmental Impact of Asphalt Plants. (2002). Retrieved November 13, 2016, from: https://www.asphaltpavement.org/PDFs/SR206-EnviromentalImpact-web.pdf 

[24] Turner, J. H., Mckenna, J. D., Mycock, J. C., Num, A. B., & Vatuvak, W. M. (1998, December). Section 6 Particulate Matter Controls. Chapter 1 Baghouses and Filters, 1-48. Retrieved October 18, 2016. From: https://www3.epa.gov/ttncatc1/dir1/cs6ch1.pdf

[25] Turner, J. H. (2015, April 29). Section 6 Particulate Matter Controls." EPA Baghouse Filter (1998). Retrieved from Environmental Protection Agency: Http://epa.gov/ttncatc1/dir1/cs6ch1.pdf. 

[26] Vatavuk, W. M. (1995). Hoods, Ductwork and Stacks. Research Triangle Park, NC: U.S. Environment Protection Agency. Retrieved 2015, from: https://www3.epa.gov/

[27] Vatavuk, W. M., Barbour, W., & Oommen, R. (1995). Wet Scrubbers for Acid Gas. U.S. Environmental Protection Agency. 

[28] Vatavuk, W. M. (1995, December). WET SCRUBBERS FOR ACID GAS. Post-Combustion Controls, 1-60. Retrieved November 1, 2016, from: https://www3.epa.gov/ttn/ecas/docs/cs5-2ch1.pdf. 

[29] Wang, L. K., Taricska, J. R., Hung, Y.T., Eldridge, J. E., & Li, K. (2004). Wet and Dry Scrubbing-Air Pollution Control Engineering (pp. 197-302). Humana Press Inc. 

[30] Wet Scrubber for Particulate Matter. (2015). Retrieved from: U.S. Environmental Protection Agency: http://cfpub.epa.gov/oarweb/mkb/contechnique.cfm?ControlID=27