关于有毒副产品和全面的紫外线/先进氧化水处理
Nathan Moore1, Nicole Zollbrecht1, Tianyi Chen1
1University of Toronto, 35 St. George Street, Toronto, Ontario M5S 1A4, Canada.
Environmental science & technology
|November 5, 2024
概括
对于饮用水和可饮用再利用的紫外线/先进氧化通常比传统化产生更少的副产品和更低的体外毒性. 由于毒性较高,化副产品的形成需要进一步调查.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 毒理学 毒理学 毒理学
背景情况:
- 先进的氧化工艺 (AOP) 越来越多地用于水处理.
- 紫外线/是可饮用再利用和饮用水的常见AOP.
- 了解副产品的形成和毒性对于公众健康至关重要.
研究的目的:
- 研究紫外线/处理的副产品形成和体外基因毒性/细胞毒性.
- 为了比较紫外线/与传统化,关于副产品概况和毒性.
- 在不同的水处理场景中评估紫外线/的有效性.
主要方法:
- 研究了使用紫外线/处理水的四个设施.
- 在处理水样本中分析有机副产品的形成.
- 评估了水样的体外基因毒性和细胞毒性.
- 结果与监管限值和常规化数据进行比较.
主要成果:
- 对可饮用再利用的逆透透物进行紫外线/处理显示,副产品的形成很少.
- 使用紫外线/的地下水处理导致THM和HAA的水平较低,低于监管限制.
- 总体上,副产品的形成和体外毒性低于许多常规化水的水平.
- 观察到一种转向更化消毒副产品的转变.
结论:
- 紫外线/AOP有效地最大限度地减少有害的副产品的形成,用于饮用可重复使用和饮用水.
- 与传统化相比,该过程在体外显示出较低的毒性.
- 建议对化副产品的形成和毒性的进一步研究.
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