Department of Chemistry, Faculty of Science, Eskisehir Osmangazi University, 26040, Eskisehir, Turkey.
Department of Chemistry, Graduate School of Natural and Applied Sciences, Eskisehir Osmangazi University, 26040, Eskisehir, Turkey.
Environ Sci Pollut Res Int. 2024 Apr;31(17):25836-25848. doi: 10.1007/s11356-024-32809-w. Epub 2024 Mar 15.
Biosorptive treatment with microbial biomass is regarded as an environmentally friendly and effective way to reduce dye contamination in contaminated aquatic environments. Immobilizing microbial cells for use in this process can significantly improve their effectiveness as biosorbents in the water treatment process. The current investigation searches for a sustainable and environmentally friendly approach to decolorization by employing a green biocomposite material sorbent system (ZM@GFC) created by immobilizing fungal cells (Gibberella fujikuroi) on maize tassel tissues to efficiently remove Reactive Yellow 2 (RY2) from contaminated water sources. Batch and dynamic flow tests were performed to evaluate the biodecolorization properties of the newly created immobilized biomaterial as well as the effects of several essential operating conditions factors on the sorption behavior. Biosorption yields of 95.7% and 90.0% in batch and dynamic modes were achieved for experimental dye decolorization. The biosorption of RY2 by ZM@GFC occurred fast and achieved equilibrium within 60 min. The pseudo-second-order kinetic model elucidated the dye biosorption onto ZM@GFC. The Langmuir model provided a more accurate representation of the results than the Freundlich model. At the same time, Redlich-Peterson isotherm demonstrated the best level of agreement with the experimental data. These findings indicate that the biosorption mechanism predominantly involved the formation of a monolayer covering and that the energy properties of the ZM@GFC surface were uniform. The breakthrough capacity at the exhaustion time was 537.32 mg g. The predicted cost of generating ZM@GFC was anticipated to be 61.03 USD/kg. The investigations on safe disposal demonstrated that the biosorption process did not generate any secondary pollution. In conclusion, using maize tassel tissue as an immobilized decolorization agent offers a possible method for removing reactive azo dye pollutants from the aquatic medium that is both economical and environmentally benign.
利用微生物生物质进行生物吸附处理被认为是一种环保且有效的方法，可以减少受污染水环境中的染料污染。将微生物细胞固定化用于该过程可以显著提高其在水处理过程中的生物吸附剂的有效性。目前的研究寻求一种可持续和环保的方法，通过使用一种绿色的生物复合材料吸附剂系统（ZM@GFC）来实现对活性黄 2（RY2）的有效去除，该系统通过将真菌细胞（藤仓镰刀菌）固定在玉米穗组织上来实现对活性黄 2 的去除。通过批处理和动态流动试验评估了新制备的固定化生物材料的生物降解性能以及几个重要操作条件因素对吸附行为的影响。在批处理和动态模式下，实验染料脱色的生物吸附率分别达到 95.7%和 90.0%。RY2 在 ZM@GFC 上的吸附快速，60 分钟内达到平衡。拟二级动力学模型阐明了 RY2 在 ZM@GFC 上的吸附。Langmuir 模型比 Freundlich 模型更能准确地描述结果。同时，Redlich-Peterson 等距线与实验数据的吻合度最好。这些发现表明，吸附机制主要涉及形成覆盖单层，并且 ZM@GFC 表面的能量性质均匀。在耗尽时间的穿透容量为 537.32 mg/g。预计生成 ZM@GFC 的预测成本为 61.03 美元/千克。关于安全处置的研究表明，吸附过程不会产生任何二次污染。总之，使用玉米穗组织作为固定化脱色剂为从水介质中去除反应性偶氮染料污染物提供了一种经济环保的可能方法。
