固定化奇托作为有效的吸附剂,用于从水溶液中对Cr (VI) 的柱状吸附
Mahesh Kumar Shetty1, Jagadish H Patil2, S Murthy Shekhar3
1Department of Chemical Engineering, Dayananda Sagar College of Engineering, Bengaluru 560078, India.
International journal of biological macromolecules
|November 10, 2024
概括
这项研究开发了固定化奇托,以有效地从水中去除 (VI). 该材料具有很高的吸附能力和稳定性,表明了大规模水处理应用的潜力.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 越来越需要解决水溶液中的六价 (Cr (VI)) 污染问题.
- 基托是一种生物聚合物,提供功能性吸附位点.
- 酸作为基托固定的矩阵.
研究的目的:
- 为了创建一个有效的吸附剂去除Cr (VI).
- 为了研究固定床柱中固定化奇多的吸附性能.
- 评估吸附剂的再生和再利用潜力.
主要方法:
- 通过离子交换对酸盐进行基托桑固定.
- 在Cr (VI) 吸附之前和之后吸附剂的表征 (形状,结晶度,功能组).
- 固定床柱吸附实验具有不同的操作参数 (流量,初始Cr (VI) 度,床高度).
- 使用托马斯,尤恩-尼尔森和亚当斯-博哈特运动模型进行分析.
主要成果:
- 在10毫升/分钟流量,50毫克/升初始Cr (VI) 度和18厘米床高度下,达到78.41%的最大Cr (VI) 吸附率.
- 吸附过程符合Thomas和Yoon-Nelson模型,表明均床和低质量转移阻力.
- 吸附剂在四个循环中证明了稳定性和可重复使用性.
结论:
- 固定化奇托是从水溶液中去除Cr (VI) 的有希望的吸附剂.
- 吸附过程是高效和可预测的,适合大规模应用.
- 该材料的稳定性和可重复使用性支持其用于工业水处理的潜力.
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