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The chemical compositions of the MISCBA based on XRF analysis are presented in Table 1. From the result, it can be seen that silicon dioxide is the predominant element in the MISCBA. The high silicon value of 72.6% in the MISCBA is due to the thermal treatment the material undergoes. The quality of a produced AC is mainly judged by its high silicon content (Usman et al. 2014). The predominance of silica content in the MISCBA might be the major constituent element involved in the adsorption process of heavy metals. The results obtained are similar to the results reported by Manyà & Arauzo (2008) on describing the isothermal pyrolysis of micro-particles of sugarcane bagasse replacement of sugarcane bagasse as quartz in red ceramic (Teixeira et al. 2008) and analysis of sugarcane bagasse ash under thermal gasification (Fredericci et al. 2014).

Table 1

Elemental constituents of MISCBA by percentage

 Oxides
ElementsSiO2K2OP2O5CaOSO3MgOFe2O3MnOAl2O3ZnOCuORb2O
72.6 12.1 6.17 3.69 2.43 0.69 0.608 0.22 0.19 0.15 0.22 0.07 
 Oxides
ElementsSiO2K2OP2O5CaOSO3MgOFe2O3MnOAl2O3ZnOCuORb2O
72.6 12.1 6.17 3.69 2.43 0.69 0.608 0.22 0.19 0.15 0.22 0.07 

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