S. M. Abir Hasan¹*, Moushtakim Billah², Md. Moniruzzaman¹, Md. Motasim Billah¹, Md. Sarowar Hossain Chowdhury¹, Ruhul Amin³, Mst. Rakiba Parven¹, and Md. Ohedul Islam¹ 

¹Engineering Division, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh; ²Department of Civil Engineering, Bangladesh University of Engineering & Technology, Dhaka, Bangladesh; ³Institute of Nuclear Science & Technology, AERE, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh. 

*Correspondence: abir.sagar@yahoo.com (S. M. Abir Hasan, Engineering Division, Bangladesh Atomic Energy Commission (BAEC), Dhaka, Bangladesh).

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ABSTRACT 

Wastewater treatment plant (WWTP) has become one of the most important structures nowadays and concrete is considered to be the most suitable material for the construction of this kind of structure for its several useful properties like durability, compressive strength, impermeability, abrasion resistance, etc. However in an aggressive environment, with the effects of constituents of wastewater and different chemicals applied in the treatment process of wastewater, concrete’s performance is greatly challenged. Chemicals like acid, sulfides, sulfates, salt, and gases generated from different reactions, micro-organisms, etc. can cause chloride ingress, carbonation, corrosion, sulfate attack, bio-deterioration, and erosion of concrete in wastewater treatment plants.  As a consequence, a large amount of money is spent on the maintenance and repair works for wastewater treatment plants every year. Therefore, the quality of the concrete used in structures like WWTP must be very high. This study aims to explore the detrimental effects of various harmful chemicals on concrete in wastewater treatment plants, degradation mechanisms, and different methods of enhancing the resistance of concrete. The study also represents the current scenario of Bangladesh regarding this issue with the help of some excellent references, codes, and guidelines of important organizations and practical surveys. 

Keywords: Concrete, Chemical attack, Durability, Wastewater, Relative humidity, pH, and WWTP.

Citation: Hasan SMA, Billah M, Moniruzzaman M, Billah MM, Chowdhury MSH, Amin R, Parven MS, and Islam MO. (2023). Chemical attack on concrete in wastewater treatment plant: a review. Aust. J. Eng. Innov. Technol., 5(5), 192-205. https://doi.org/10.34104/ajeit.023.01920205

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