基于真空紫外线的水和废水净化工艺:从单元到多元组件系统
Chuang Wang1, Xiaohui Wang2, Jinying Du3
1School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, PR China; Hunan Province Key Laboratory of Coal Resources Clean Utilization and Mine Environment Protection, Hunan University of Science and Technology, Xiangtan 411201, PR China.
Water research
|January 31, 2025
概括
与传统的紫外线相比,真空紫外线 (VUV) 水处理显著提高了污染物去除效率,减少了化学品的使用. 包括二进制和三进制系统在内的VUV过程为净化水提供了有希望的,节能的方法.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 先进的氧化过程 先进的氧化过程
背景情况:
- 传统的紫外线处理用于净化水的效率和化学品的使用有局限性.
- 真空紫外线 (VUV) 为污染物清除提供了增强的能力,并减少了对化学品的依赖.
- 越来越多的人对VUV对水和废水处理的兴趣,需要对其应用进行全面审查.
研究的目的:
- 综合审查基于VUV的水处理过程,从单元应用到复杂的多元组件系统.
- 分析各种基于VUV的二元和三元系统的性能,反应性物种和机制.
- 确定未来的研究方向和VUV在水净化中的潜在应用.
主要方法:
- 对基于VUV的单元化,二元化 (例如VUV/H2O2,VUV/硫酸盐) 和三元化水处理系统的现有文献的审查.
- 对污染物去除速度,主要反应物种 (基,化电子,原子基) 和反应机制的分析.
- 基于VUV的工艺与传统紫外线方法在效率和能源消耗方面的比较评估.
主要成果:
- 单元VUV显示污染物去除率比UV高1.3-57倍,主要是通过基氧化.
- VUV通过化电子和原子激素活动有效地去化有机物和减少金属离子.
- 基于VUV的二进制和三进制系统,包括类似芬顿的过程和与氧化剂的组合,显示出扩大了应用潜力和提高了效率.
结论:
- 基于VUV的先进氧化工艺对水处理非常有效,与UV相比,提供更高的效率和更低的能源消耗.
- 该研究强调了参与VUV过程的多种反应物种和机制,这对于优化治疗至关重要.
- 未来的研究应该专注于开发新的VUV技术,尽量减少副产品,并加强试点研究,以便在现实世界水处理中得到更广泛的应用.
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