Pollution & Waste Treatment Laboratory (PWTL), Kasdi Merbah University, P.O. Box 511 Route de Ghardaia, Ouargla, 30000, Algeria.
Chemistry Department, Valorisation and Promotion of Saharan Resources Laboratory (VPRS), University of Ouargla, P.O. Box 511 Route de Ghardaia, Ouargla, 30000, Algeria.
Environ Monit Assess. 2024 Aug 27;196(9):844. doi: 10.1007/s10661-024-12896-5.
The study investigated the utilization of waste palm fiber as an adsorbent for methylene blue (MB) removal. The waste palm fiber was treated by a series of steps to prepare an activated charcoal adsorbent. The adsorption process of MB on the activated charcoal was modeled using the Box-Behnken design (BBD) in the response surface methodology (RSM). Adsorbent mass, solution pH, temperature, and time were selected as factors, while removal efficiency and adsorption capacity were chosen as responses. Both models were significant with correlation factors of 0.85 and 0.99 for removal efficiency and adsorption capacity, respectively. Optimal conditions for MB removal were achieved at an initial pH of 7, an adsorbent dose of 0.05 g/L, and a contact time of 30 min, resulting in a 99% removal efficiency. The adsorption of MB using the activated charcoal indicates the physical nature of the reaction.
该研究调查了利用废棕榈纤维作为吸附剂去除亚甲蓝（MB）的情况。废棕榈纤维经过一系列步骤处理，制备出活性炭吸附剂。采用响应面法中的 Box-Behnken 设计（BBD）对 MB 在活性炭上的吸附过程进行建模。吸附剂质量、溶液 pH 值、温度和时间被选为因素，而去除效率和吸附容量则被选为响应。两个模型都非常显著，去除效率和吸附容量的相关系数分别为 0.85 和 0.99。MB 去除的最佳条件为初始 pH 值为 7、吸附剂用量为 0.05 g/L 和接触时间为 30 min，此时去除效率达到 99%。使用活性炭吸附 MB 表明反应具有物理性质。
