将播种结晶与漂浮相结合,从废水中回收:实验和分子模拟研究
Hao Zhang1, Jue Kou1, Chunbao Sun1
1School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Molecules (Basel, Switzerland)
|June 10, 2023
概括
这项研究表明,利用播种结晶和浮动,有效地从工业废水中去除和回收. 该方法产生适合工业应用的化,使资源利用成为可能.
科学领域:
- 环境化学环境化学
- 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:
- 工业废水通常含有宝贵的资源,需要有效的清除和回收.
- 传统方法可能无法优化回收或回收产品的质量.
- 开发可持续的管理流程对于环境保护和资源节约至关重要.
研究的目的:
- 开发和研究一种逐步的方法来从工业废水中去除和利用.
- 通过播种结晶来提高回收的化 (CaF2) 的质量.
- 评估使用回收的CaF2代替金级化物的可行性.
主要方法:
- 使用化物作为种子晶体来控制CaF2晶体的生长和形态.
- 播种结晶与传统化学沉的比较.
- 使用X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 分析沉物形态.
- 分子模拟以了解溶液和接口中的离子行为.
- 用于回收沉的化的漂浮技术.
主要成果:
- 与化学沉相比,用化物的播种结晶促进了更完美的CaF2晶体的生长.
- 分子模拟证实,化物表面提供了离子粘附的活性点,导致有序的层形成.
- SEM和XRD分析的特点是改善的晶体形态.
- 漂浮成功地恢复了化沉物.
- 逐步工艺产生了64.42%的CaF2纯度的产品,适合部分替代金级化石.
结论:
- 逐步播种结晶和浮动提供了一种有效的方法,既可以从废水中去除,又可以将其作为可用的资源回收.
- 使用化物种子显著提高了回收的化的质量.
- 这种综合过程有助于污水处理和资源回收在工业环境.
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