模拟六价和Xylidine Ponceau染料在批量和柱子系统中对Agave聚合物复合物的二进制吸附
Martín Esteban González-López1, Cesar Mario Laureano-Anzaldo2, Aida Alejandra Pérez-Fonseca2
1Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Monterrey, Nuevo León, 64700, México.
Environmental science and pollution research international
|November 8, 2025
概括
这项研究表明,一种酸盐吸附剂如何处理危险的 (VI) 和氧化Ponceau染料混合物. 吸附是稳定的,但由于,染料的去除减少.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附科学 吸附科学
背景情况:
- 六价 (Cr(VI)) 和西利丁庞索染料是危险的环境污染物.
- 二元污染物混合物可以对吸附剂性能产生协同或对抗作用.
- 了解这些相互作用对于有效的废水处理至关重要.
研究的目的:
- 为了评估基托基吸附剂对Cr(VI) 和Xylidine Ponceau二元混合物的吸附性能.
- 调查每个污染物对其他污染物的吸附能力和动力学的影响.
- 在批量和固定床配置中分析吸附行为.
主要方法:
- 使用基托基材料进行批量吸附实验.
- 固定床柱研究以模拟现实世界的条件.
- 同热体建模 (例如,预测的二进制同热体) 和动力分析 (例如,伪第一阶模型).
- 突破曲线分析和修改的托马斯模型应用.
主要成果:
- 的吸附能力在很大程度上不受Xylidine Ponceau的存在影响 (~13.6 mg/g).
- 在Cr的存在下,xylidine Ponceau的吸附能力从26.9毫克/克显著下降到11.4毫克/克.
- 利丁Ponceau吸附动力学加速与Cr(VI),表明潜在的相互作用.
- 固定床分析显示大质量转移区域和高质量转移阻力.
结论:
- 在二元混合物中,基托桑对Cr (VI) 具有选择性,而不是Xylidine Ponceau.
- 的存在显著阻碍了西利丁Ponceau的吸附能力,但增强了它的动力学.
- 修改后的托马斯模型准确地估计了固定床系统中的污染物分布.
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