活性炭在紫外线//活性炭-TiOO中的作用
Shaoxiong He1, Li Ling2, Yuxin Wu1
1Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Environmental science & technology
|June 7, 2023
概括
紫外线//AC-TiO2工艺增强了微污染物的去除,并减少了消毒副产品 (DBPs). 活性炭 (AC) 增加基 (HO•) 的产生,提高水处理的效率和安全性.
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 先进的氧化过程
背景情况:
- 紫外线 (UV) /工艺越来越多地用于减少微污染物.
- 关键的挑战包括有限的基 (HO•) 生产和消毒副产品 (DBP) 的形成.
研究的目的:
- 为了研究活性炭 (AC) 在UV//AC-TiO2系统中的作用.
- 评估其在微污染物减排和DBP控制方面的有效性.
主要方法:
- 利用紫外线//AC-TiO2用于微污染物降解和DBP分析.
- 测量了降解速度和HO•度.
- 量化总有机 (TOCl) 和特定的DBPs.
主要成果:
- 与其他测试配置相比,UV//AC-TiO2的降解率显著更高.
- 交流增强了HO•平稳状态度大约2.5倍.
- 与紫外线/相比,TOCl和已知的DBPs分别减少了62.3%和75.7%.
结论:
- 交流电充当电子导体和溶解氧吸附剂,增强HO•生成.
- 紫外线//AC-TiO2工艺有效地减少了各种微污染物,同时控制了DBP的形成.
- 该战略为设计用于水处理的先进氧化催化剂提供了一种新的方法.
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