Assessing the effectiveness and applicability of raw Danielle oliveri sawdust as a sustainable adsorbent for the removal of dyes Olawale Dabo, Akinwumi, Victoria, Aderibigbe, Deborah O, Giwa, Abdur-Rahim, Olabamiji, Mumeenat Ladoke Akintola University of Technology Ogbomoso, Nigeria The rapid demand for water due to industrial growth and urbanization, and the swift climate crisis have left one- fourth of the world's population facing "extremely high water stress." The textile industry consumes 79 trillion litres of water annually and is also responsible for about 20 percent of global clean water water pollution from dyeing and finishing products. This study was aimed at the synthesis, characterization, and assessment of the effectiveness of raw Daniellia oliveri sawdust as a sustainable and cost-effective adsorbent in the removal of congo red dye in single and binary systems from aqueous medium. Surface morphological studies of the raw Danielle oliveri sawdust were investigated by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscope (SEM), and pH point of zero charge (pHpzc). The influence of selected adsorption parameters (pH, concentration, dosage, temperature) on the adsorption process were examined in order to establish optimum experimental conditions. The removal efficiency was observed to decrease with increased initial dye concentration (20 - 80 mg/L) but increased with increasing adsorbent dosage (0.05 - 0.6 g) while a gradual increase in removal efficiency was recorded in all systems as the temperature increased. (20 - 60 o C). The optimum pH for the process was recorded at pH 5. The Langmuir’s maximum adsorption capacity (qm) of raw Danielle oliveri sawdust for the removal of congo red dye in the single and binary systems was found to be 72.46 and 34.36 mg/g respectively. The results obtained in this study shows that raw Danielle oliveri sawdust has tremendous potential as a low-cost and environmentally friendly adsorbent in the removal of dyes in single and multicomponent systems. References 1. Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, P.M.B. 4000, Ogbomoso, Nigeria. 2. School of Basic Sciences, Nigeria Maritime University, Okerenkoko, P.M.B 1005, Warri, Nigeria.
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