A Review of the Scrubber as a Tool for the Control of flue Gas Emissions in a Combustion System


  •   N. Harry-Ngei

  •   I. Ubong

  •   P. N. Ede


This paper focuses on the description, function and working principles of the wet gas scrubber required to control air pollution emissions from a combustion system of a boiler. Important points to note in the selection and operation of the scrubber as well as the different types of scrubbers commonly deployed in the industries to cut down on emissions were addressed. A comprehensive reviews of the removal mechanisms and schemes of the scrubber were reported for various research on the subject. The packed tower scrubber, however, was recommended because of varying advantages and ease of operations.

Keywords: Scrubber, Gas Emission, Combustion, Environmental Pollution


Strathmann, H. (2000). Encyclopedia of Separation Science. Academic Press, Cambridge Massachusetts, US, 1667-1676.

Mazumder, B. (2012). Coal Science and Engineering. Woodhead Publishing, India, 145-451.

Membrane Science and Technology (2006). Membrane Contactors: Fundamentals, Applications and Potentialities. Elsevier Science, Amsterdam, Netherlands.

Bhargava, A. (2016). Wet Scrubbers – Design of Spray Tower to Control Air Pollutants. International Journal of Environmental Planning and Development, 2(1), 68-73.

Afework, B., Hanania, J., Stenhouse, K. & Donev, J. (2018). Energy Education – Dry Scrubber [online]. Available: https://energyeducation.ca/encyclopedia/Dry_Scrubber. [Accesses: July 30, 2019].

Boer, N. & Hoen, M. (2015). Scrubbers - An economic and ecological assessment, Delft, CE Delft, 15.4F41.20.

Raiko, M. (2016). Reduction of Heavy Metals in Wet Flue Gas Scrubbers.

EPA (2002). Wet Scrubbers for Particulate Matter, EPA/452/B-02-001.

Jafari, M.J., Ghasemi, R., Mehrabi, Y., Yazdanbakhsh, A.R. & Hajibabaei, M. (2012). Influence of liquid and gas flow rates on sulfuric.

Perry,R. & Green, D.W. (1999). Perry’s Chemical Engineer’s Handbook. Mcgraw-hill Companies, Totowa, New Jersey, US.

Wang, L.K., Pereira, N.C. & Hung, Y.T. (2004). Pollution Control Engineering. Humana Press, Totowa, New Jersey, US.

Theodore, L. (2008). Air Pollution Control Equipment Calculations. John Wiley & Sons, Inc., Hoboken, New Jersey, US.

Arachchige, U.S. & Melaaen, M.C. (2012). Selection of Packing Material for Gas Absorption. European Journal of Scientific Research, 87(1), 117-126

Roy, P., & Sardar, A. (2015). SO2 Emission Control and Finding a Way Out to Produce Sulphuric Acid from Industrial SO2 Emission. J Chem Eng Process Technol, 6(2).

Dehghani, A. & Bridganian, H. (2010). Flue gas desulphurization methods to conserve the environment. Petroleum & Coal, 52, 220-226.

Mendes, M.F. (2011). HETP Evaluation of Structured and Randomic Packing Distillation Column, Mass Transfer in Chemical Engineering Processes, Dr. Jozef Markoš (Ed.), InTech Publishers, Available from: http://www.intechopen.com/books/mass-transfer-in-chemical-engineering-processes/hetp-evaluation-of-structured-and-randomic-packing-distillation-column

Zagala, M. & Abdelaal, H. (2017). Flue Gas Cleaning Systems - A Review Paper. Contemporary Problems of Power Engineering and Environmental Protection, 75-82.

Bricl, M. (2016). Cleaning of Flue Gases in Thermal Power Plants. Journal of Engineering Technology, 9(4), 45-56.

Natural Resources Defense Council, NRDC. (2011). Evaluating Mercury Control Technologies for Coal Power Plants. NRDC Report, 1-4.

Russell, M.C., Belle, J.H. & Liu,Y. (2017). The impact of three recent coal-fired power plant closings on Pittsburgh air quality: A natural experiment. Journal of the Air & Waste Management Association, 67(1), 3-16.

Jafarinejad, S. (2016). Control and treatment of sulfur compounds specially sulfur oxides (SOx) emissions from the petroleum industry: A review. Chemistry International, 2(4), 242-253.

Sundqvist, T. & Soderholm, P. (2002). Valuing the Environmental Impacts of Electricity Generation: A Critical Survey. The Journal of Energy Literature, 8(2), 3-41.

Osman, K., Coquelet, C., & Ramjugernath, D. (2014). Review of carbon dioxide capture and storage with relevance to the South African power sector. South Africa Journal of Science, 110(5/6).

Oko, E., Wang, M. & Joel, A.S. (2017). Current status and future development of solvent-based carbon capture. Int J Coal Sci Technol 4(1), 5–14.


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How to Cite
Harry-Ngei, N., Ubong, I. and Ede, P. 2019. A Review of the Scrubber as a Tool for the Control of flue Gas Emissions in a Combustion System. European Journal of Engineering and Technology Research. 4, 11 (Nov. 2019), 1-4. DOI:https://doi.org/10.24018/ejers.2019.4.11.1561.