纳米泡改善基于过氧化硫酸盐的先进氧化:高效率,低毒性/成本,以及新的协作机制
Jun Bo Zhang1, Jia Jie Zou1, Chaomeng Dai2
1College of Civil Engineering, Tongji University, Shanghai 200092, China; Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai 200444, China.
Journal of hazardous materials
|May 17, 2024
概括
纳米气泡 (NBs) 显著增强了用于水处理的Cl-/PMS氧化系统,促进了污染物降解,同时减少了有毒消毒副产品 (DBPs). 这种新的方法为清洁水提供了一个环保的战略.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 纳米技术 纳米技术
背景情况:
- 由离子 (Cl-) 激活的过氧硫酸盐 (PMS) 是有效的污染物降解.
- 化消毒副产品 (DBPs) 的形成限制了Cl-/PMS在水处理中的应用.
- 纳米泡 (NBs) 提供了增强化学氧化过程的潜力.
研究的目的:
- 为了研究纳米泡 (NB) 协同作用的Cl-/PMS系统对水处理的协同作用.
- 评估NB对污染物降解和DBP形成的影响.
- 阐明在Cl-/PMS系统中NB的协同效应背后的机制.
主要方法:
- 设计和实施一个纳米泡 (NB) 协同作用的Cl-/PMS系统.
- 污染物降解速度和DBP形成的量化.
- 对NB度和Zeta对系统性能潜在影响的分析.
- 使用静电吸引原理研究协同机制.
主要成果:
- 在NBs/Cl-/PMS系统中观察到显著和普遍的协同效应,升级率从12.89%到34.97%.
- 通过增加NB度和Zeta潜力,协同效应进一步得到改善.
- NBs作为桥梁,通过静电吸引增加活性物质度.
- 该系统从增加转移到通过改变降解途径和减少有毒DBPs减少环境毒性.
结论:
- 该NBs/Cl-/PMS系统提供了一种新且环保的氧化技术.
- 在Cl-/PMS氧化过程中,NBs有效地减少了高度有毒的DBPs的产生.
- 这项技术为先进的水处理应用提供了一个有前途的战略.
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