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Correspondence to Author: Kirankumar Rathod¹, Keshava Joshi². 

¹Assistant Professor, Department of chemical Engineering, SDM College of Engineering and Technology, Dharwad- Karnataka, India; Email: kiri.rathod@gmail.com.
²Associate professor, Department of chemical Engineering, SDM College of Engineering and Technology, Dharwad- Karnataka, India; Email: joshikeshava@gmail.com.

DOI: 10.52338/joes.2025.4445

Abstract:

This study explores the optimization of denitrification and Chemical Oxygen Demand (COD) removal in spouted bed reactors (SBRs) by modeling mass transfer and biofilm dynamics under aerobic conditions. The research examines the impact of varying Granular Activated Carbon (GAC) masses and flow rates on treatment efficiency. Results indicate that higher flow rates enhance COD removal, while lower flow rates improve nitrate reduction. Scanning Electron Microscopy (SEM) analysis revealed biofilm thicknesses ranging from 3.22 to 7.02 µm, significantly influencing mass transfer and treatment outcomes. A developed model highlighted the inverse relationship between mass transfer coefficients and both flow rate and GAC loading, emphasizing the need for precise optimization. These findings provide valuable insights into enhancing wastewater treatment processes using SBRs, contributing to improved environmental sustainability.

Citation:

Kirankumar Rathod, Enhancing Denitrification And Cod Removal In Spouted Bed Reactors: A Modeling Approach To Optimize Mass Transfer And Biofilm Dynamics. Journal of Environmental And Sciences 2025.