使用desferroxamine B从光纤行业的废水中回收
Aratrika Ghosh1, Christian Hintersatz2, Jérôme Kretzschmar3
1Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Biotechnology Department, Bautzner Landstrasse 400, Dresden 01328, Germany; Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New Delhi 110016, India.
Journal of hazardous materials
|May 9, 2025
概括
这项研究引入了一种新的方法,用于从工业废水中回收 (Ge),使用desferrioxamine B (DFOB). 开发的 siderophore 辅助技术有效地回收 Ge,解决了关键的供应问题.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 无机化学 无机化学 有机化学
背景情况:
- (Ge) 是一个重要的工业元素,其长期供应不确定.
- 二级资源,如工业废水,是地球回收的潜在资源.
- 赛德罗辅助技术为Ge恢复提供了一个有前途的途径,但与Ge的相互作用尚未研究.
研究的目的:
- 为了研究 (Ge) 和desferrioxamine B (DFOB) 之间的相互作用,一个 siderophore.
- 开发一种利用DFOB从低度废水中回收Ge的技术.
- 描述Ge-DFOB复合体并优化回收条件.
主要方法:
- 在不同的pH值,离子度 (化物,酸盐,硫酸盐,酸盐) 和在有竞争金属离子 (Ca,Mg,Cu,Zn,Si) 的情况下对Ge-DFOB进行复杂化研究.
- 谱学和密度函数理论 (DFT) 计算以确定复杂结构.
- 开发的技术应用于光纤行业的废水,使用逆相高性能液态色谱 (RP-HPLC) 进行回收.
主要成果:
- Ge-DFOB复合在低pH条件下是有利的,并由离子增强.
- DFOB 具有很高的选择性,即使在 Zn,Ca,Cu 和 Mg 的摩尔过量超过 20 倍时, Ge 复合率> 80%,在等等 Si 时,复合率> 90.1%.
- 通过将pH值提高到5.0或添加多余的乙烯基胺酸 (EDTA),实现了超过95%的解复.
- 光谱和DFT分析证实了DFOB酸盐组和Ge.Ge.之间的六酸盐复合体.
- 从光纤废水回收产生了>80%的Ge-DFOB,使用RP-HPLC纯度为84.5%.
结论:
- 德费里奥克山B (DFOB) 有效地复合 (Ge),在复杂矩阵中显示出高选择性.
- 优化的条件允许高效地进行Ge回收和随后的解复.
- 使用Siderophore辅助技术,特别是使用DFOB,是从工业废水中回收高纯度Ge的可行方法.
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