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从炼油厂废水中去除碳化合物污染物,使用N-hexadecylchitosan作为有效的吸附平台
Rasool Khan1, Zeenat Haram1, Waqas Ahmad1
1Institute of Chemical Sciences, University of Peshawar, Peshawar, 25120, Khyber Pakhtunkhwa, Pakistan.
Scientific reports
|July 26, 2024
概括
N-hexadecylchitosan (NHDC) 有效地从炼油厂废水中去除有机污染物. 这种生物基吸附剂显示出高效率和稳定性,为水处理提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 炼油厂的废水对环境构成重大风险.
- 原生酸盐在处理这些废水方面存在局限性,原因是吸附性和选择性差.
- 开发先进的吸附剂对于有效的废水整治至关重要.
研究的目的:
- 合成N-hexadecylchitosan (NHDC) 作为一种改进的吸附剂.
- 评估NHDC在从炼油厂废水中去除碳化合物污染物的效率.
- 为了研究NHDC的吸附机制和稳定性.
主要方法:
- 合成N-六甲基基托 (NHDC).
- 使用FTIR,SEM和XRD进行表征.
- 批量吸附实验以研究COD去除.
- 动力学和平衡研究.
主要成果:
- 在NHDC中,COD的去除率为63%,相比之下,酸盐的去除率为21%.
- 使用0.08g的NHDC在pH6.5和60°C时在60分钟内实现了96%的COD的最佳去除.
- 吸附遵循伪二次动力学,支持单层和多层机制.
- 在五个吸附-脱附周期中,NHDC表现出长期稳定性.
结论:
- NHDC是一种高效且稳定的生物基吸附剂,用于炼油厂的废水.
- 开发的吸附剂为去除有机污染物提供了可持续的解决方案.
- 在废水处理系统中,NHDC显示出对工业应用的前景.
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