Environmental pollution, particularly water contamination, has become one of the most prominent global challenges of the twenty-first century. Among the various methods employed for water treatment, adsorption has gained significant attention as the process is simple, cost-effective, and efficient in removing a wide range of pollutants. Spent biosorbents refers to that biosorbent that is already used in adsorption processes and now saturated with contaminants. The reusability of biosorbents is a critical factor in determining their overall sustainability and cost-effectiveness. This study focused on the development and characterization of ceramic discs composed of bentonite clay mixed with spent biosorbents. The objective of this research is to explore the possibility of these composite materials for enhanced adsorption of pollutants from aqueous solutions, with a particular emphasis on the removal of dyes. About 94% methylene blue dye removal was achieved. Average HV (Vickers hardness number) of the pellets containing 0.5 g spent biosorbent was 92. The adsorption process was governed by Freundlich isotherm model. This indicates multilayer adsorption on a heterogeneous surface, and is governed by first-order kinetics. Thus it can be predicted that rate of adsorption is dependant on the concentration of pollutants.