从模拟的工业废水中高效地去除多重金属,通过使用碳氧甲基-酸盐复合材料的吸附工艺
Prabhat Kumar Patel1, Lalit Mohan Pandey2, Ramagopal V S Uppaluri3
1Centre for the Environment, Indian Institute of Technology Guwahati, North Guwahati, 781039, Assam, India.
Environmental research
|October 27, 2023
概括
碳氧甲基基托桑树脂有效地从水中去除诸如,和铁等重金属. 这些低成本树脂显示出出色的再生潜力,可以消除多金属离子.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 奇托是一种生物聚合物,在废水处理中具有潜在的应用.
- 水中的重金属污染对环境和健康构成重大风险.
- 开发高效且具有成本效益的吸附剂对于去除重金属至关重要.
研究的目的:
- 为了合成和表征用于重金属吸附的碳氧甲基基托树脂.
- 为了研究合成树脂的吸附-脱附和再生能力,对多种重金属进行合成.
- 评估树脂在复杂的多金属系统中的性能.
主要方法:
- 使用不同分子重量的奇托桑制备碳氧甲基奇托桑树脂.
- 对多重金属 (Zn,Pb,Fe) 的吸附-脱吸特性进行研究.
- 运用动力和平衡模型来分析吸附数据.
- 使用酸溶液进行树脂再生的评估.
主要成果:
- 碳氧甲基化增强了活性位点,酸性介质的稳定性和吸附-脱附潜力.
- 的最佳吸附能力为238.10毫克g-1对于Zn,4.78毫克g-1对于Pb,以及147.06毫克g-1对于Fe.
- 树脂在使用低成本的酸溶液时,在三个吸附-脱附周期中表现出有效的再生.
- 同时存在的离子体的复杂性显著影响了吸附特性.
结论:
- 碳氧甲基基托桑树脂在同时去除,铁和离子方面具有出色的功能.
- 开发的树脂是一种有希望的,具有成本效益的材料,用于处理受重金属污染的废水.
- 该研究强调了树脂修饰对于增强环境修复应用的重要性.
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