Find in Library

Heavy metal pollution, primarily stemming from textile waste containing synthetic dyes and stabilizing substances like Fe, alum, and lime, poses severe health and environmental risks. To address this issue, this study is exploring the use of activated carbon for heavy metal reduction. Empty Palm Oil Bunches (EFB) offer a promising source of activated carbon due to their high lignocellulose content and functional groups (-OH and -COOH) that enhance heavy metal adsorption. Additionally, carbide waste, classified as hazardous and toxic waste, poses ecological threats if improperly discarded. The research focuses on utilizing EFB and carbide waste to reduce Fe metal in Fe metal synthesis waste. Various adsorbent ratios (2:2.5, 2.5:2, and 2.5:2.5) and contact times ranging from 30 to 150 minutes are investigated, with an initial metal synthesis waste concentration of 40 mg/L. Findings indicate that longer contact times, lead to substantial Fe(II) metal removal, with rates reaching 94.325%. The pH of adsorbent mixture increases due to the alkaline nature of carbide waste in the activated carbon. The Langmuir isotherm model provides the best fit for the data, with a correlation equation of y = 0.3882x + 1.4823 (R^2 = 0.995, R_L = 0.556), indicating the effectiveness of the EFB-carbide waste mixture for reducing Fe(II) ions in textile waste. The Freundlich isotherm model also shows reasonable fitting, with a correlation equation of y = -0.2804x - 0.0133 (R^2 = 0.95). In summary, the EFB-carbide waste adsorbent is a successful, consistent, and environmentally friendly solution for heavy metal reduction in textile waste.