在废水整治中对基于碳酸盐的先进氧化过程进行系统审查:从理论理解到实际应用
Ling Li1, Xiaojun Niu2, Dongqing Zhang3
1School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
Water research
|May 31, 2024
概括
碳酸 (SPC) 和多氧单碳酸 (PMC) 在高级氧化工艺 (AOP) 中有效用于净化水. 本综述探讨了用于去除有机污染物的碳酸盐-AOPs,详细介绍了ROS生成,挑战和未来的方向.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 先进的氧化过程 (AOPs)
背景情况:
- 碳酸 (SPC) 在安全性,稳定性,成本和环境影响方面比过氧化 (H2O2) 有优势.
- 基于碳酸盐的AOP显示了减轻水污染的潜力,但对其用于去除有机污染物的应用的研究是有限的.
研究的目的:
- 审查碳酸盐-AOPs中反应性氧物种 (ROS) 的形成机制和挑战.
- 突出未来的研究方向,以提高水净化中的碳酸盐-AOPs.
- 巩固对有机污染物去除的碳酸AOPs的知识.
主要方法:
- 对碳酸盐-AOPs的文献综述,重点关注ROS生成途径.
- 对SPC的不同激活方法的分析 (例如,基于铁的,等离子体,臭氧,光子,无金属).
- 通过PMC系统 (例如,H2O2/NaHCO3/Na2CO3) 检查复合物的现场化学氧化.
主要成果:
- 从激活的SPC和复合PMC系统中生成ROS的机制是详细的.
- 包括OH,O2−,CO3−,HO2−,1O2和HCO4−在内的各种ROS被认为是污染物降解的关键.
- 系统地解决了现实应用中的挑战,例如环境条件 (pH,温度,共存物质) 和生态毒性.
结论:
- 碳酸-AOP对净化水具有前景,因为它们在产生污染物降解的ROS方面的效率很高.
- 应对环境挑战和潜在的毒性对于高碳酸盐AOPs的实际应用至关重要.
- 需要进一步的研究来优化碳酸盐-AOPs,以便在水处理中广泛使用.
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