通过VC辅助Cu2O从强酸废水中去除Cl-的清除效率和机制:合成方法之间的比较
Ying Yu1, Dong Li2, Jialin Ma3
1School of Environmental Science and Engineering, Xiamen University of Technology, Xiamen 361024, China.
Toxics
|October 28, 2025
概括
这项研究引入了一种新的铜氧化物 (Cu2O) 方法,在亚酸 (VC) 的帮助下,从酸性废水中去除离子. 亚酸通过防止副作用,显著提高Cu2O的效率,为工业废水处理提供了可行的解决方案.
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:
- 工业废水经常含有高度的化物离子 (Cl-).
- 从酸性废水中去除稳定的Cl- 带来了重大的环境挑战.
- 沉方法为Cl-去除提供了适应性和操作简单性.
研究的目的:
- 开发一种新型的铜氧化物 (Cu2O) 方法,辅助亚酸 (VC) 从强酸性废水中去除Cl-.
- 为了优化Cu2O合成和Cl-去除效率的参数.
- 研究由Cu2O去除Cl-的机制以及VC在增强过程中的作用.
主要方法:
- 铜氧化物 (Cu2O) 是通过液相还原合成的.
- 试剂剂量和酸度等参数被优化为Cl-去除.
- 在处理后分析了Cu2O的化学状态,以了解去除机制.
- 评估了亚酸 (VC) 对抑制副作用和改善Cl-去除的作用.
主要成果:
- 增加试剂剂量和酸度提高了Cl-去除效率.
- 在没有VC的情况下,Cu2O处理导致铜化物 (CuCl),Cu2+,Cu0和Cu2O的形成,Cu2+和Cu0生成限制了Cl-的去除.
- 添加0.10克VC显著改善了通过Cu2O去除Cl的情况.
- VC将所需的试剂剂量倍数从12降低到3,并将剩余Cu2+从1197降低到18.4 mg/L,剩余Cl-从88.4降低到53.8 mg/L.
结论:
- 这种新的Cu2O方法,在VC的帮助下,可以从强酸性废水中去除Cl-.
- VC在抑制Cu+的副作用中起着至关重要的作用,从而提高Cu2O在Cl-去除中的效率.
- 这种方法为污染了高度的化物离子的工业废水处理提供了有前途的方法.
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