Removal of Cefdinir from Water Using Waste Material-Derived Activated Biochar as a Rapid, Effective, and Sustainable Adsorbent,Clean - Soil Air Water

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Removal of Cefdinir from Water Using Waste Material-Derived Activated Biochar as a Rapid, Effective, and Sustainable Adsorbent
Clean - Soil Air Water ( IF 1.5 ) Pub Date : 2021-05-29 , DOI: 10.1002/clen.202000420
Dilek Gümüş ₁ , Tuğrul Yumak ₂ , Fatih Gümüş ₃

Affiliation

Cefdinir adsorption onto non-activated biochar (WL-BC) and activated biochars (WL-BC-H, WL-BC-OH) prepared from waste biomass (WL) is comparatively investigated in view of adsorption factors, adsorption isotherms and adsorption kinetics. Batch experiments are conducted to assess the effects of pH, adsorption time and initial antibiotic concentration. Various advanced techniques are applied to characterize the prepared biochars (BCs). Characterization of the new BCs reveal that the activation process do not have a significant effect on the chemical structure of activated carbons, but it increases the surface area up to eight times. The equilibrium data are simulated with the Langmuir adsorption model indicating monolayer adsorption for both activated biochars WL-BC and WL-BC-H. However, the adsorption isotherm for WL-BC-OH is represented well by the Freundlich model, which shows that multilayer adsorption took place. The kinetic data are analyzed using various kinetic models. The maximum adsorption capacity of the activated biochar is approximately tenfold in comparison to the non-activated biochar. Additionally, the real wastewater experiments with treated campus wastewater show that the adsorptive performance of the activated biochar is not affected by other ions. Consequently, BCs derived from defatted laurel leaves could be effective and eco-friendly adsorbents for removing cefdinir from wastewater.

中文翻译：

使用废料衍生的活性生物炭作为快速、有效和可持续的吸附剂从水中去除头孢地尼

从吸附因子、吸附等温线和吸附动力学的角度，比较研究了头孢地尼在非活化生物炭（WL-BC）和由废生物质（WL）制备的活化生物炭（WL-BC-H，WL-BC-OH）上的吸附。进行批量实验以评估pH、吸附时间和初始抗生素浓度的影响。各种先进技术被应用于表征制备的生物炭 (BC)。新 BC 的表征表明，活化过程对活性炭的化学结构没有显着影响，但它使表面积增加了八倍。平衡数据用朗缪尔吸附模型模拟，表明活性生物炭 WL-BC 和 WL-BC-H 的单层吸附。然而，Freundlich 模型很好地代表了 WL-BC-OH 的吸附等温线，这表明发生了多层吸附。使用各种动力学模型分析动力学数据。与未活化的生物炭相比，活化的生物炭的最大吸附容量约为十倍。此外，经过处理的校园废水的真实废水实验表明，活性炭的吸附性能不受其他离子的影响。因此，从脱脂月桂叶中提取的 BCs 是一种有效且环保的吸附剂，可用于去除废水中的头孢地尼。与未活化的生物炭相比，活化的生物炭的最大吸附容量约为十倍。此外，经过处理的校园废水的真实废水实验表明，活性炭的吸附性能不受其他离子的影响。因此，从脱脂月桂叶中提取的 BCs 是一种有效且环保的吸附剂，可用于去除废水中的头孢地尼。与未活化的生物炭相比，活化的生物炭的最大吸附容量约为十倍。此外，经过处理的校园废水的真实废水实验表明，活性炭的吸附性能不受其他离子的影响。因此，从脱脂月桂叶中提取的 BCs 是一种有效且环保的吸附剂，可用于去除废水中的头孢地尼。

更新日期：2021-07-05

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