APPLICATION OF BIOGENIC SYNTHESIZED CORNCOB FOR THE REMOVAL OF METHYLENE BLUE DYE IN WASTEWATER
Abstract
This study evaluates the adsorption efficiency of biogenic synthesized corncob for the removal of methylene blue from aqueous solutions. A stock solution of methylene blue (1000 mg/L) was prepared and diluted using serial dilution to obtain working concentrations of 10 mg/L, 20 mg/L, 30 mg/L, 40 mg/L, and 50 mg/L. Adsorption experiments were conducted by agitating 0.3 g of the corncob adsorbent in 25 ml of methylene blue solution for contact times ranging from 10 to 90 minutes. The percentage removal of methylene blue was determined using a UV-Vis spectrophotometer to measure the absorbance of the filtrates. Results showed a steady increase in adsorption efficiency with both time and adsorbent concentration, reaching a maximum removal efficiency of 99.88% at 50 mg/L after 90 minutes. Statistical analysis using one-way ANOVA confirmed the uniformity of adsorption performance across all concentrations, with no significant differences observed (p > 0.05). These findings demonstrate that biogenic synthesized corncob is a highly effective, low-cost adsorbent for wastewater treatment, with promising potential for industrial and environmental applications.
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