在芳酸盐的臭氧化过程中,对有毒转化产品的氧化定向识别
Jianjian Wei1, Shuting Wang1, Weixu Tang1
1Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China.
一种新的氧化还原定向方法在不需要度数据的情况下识别水处理中的有毒转化产物 (TP). 这种方法揭示了新兴的p-基 (p-BQs) 作为水生生态系统的关键毒素.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 毒理学 毒理学 毒理学
背景情况:
- 氧化水处理产生具有复杂毒性概况的转化产品 (TP).
- 由于度低,结构多样化和混合物复杂性,评估TP毒性具有挑战性.
研究的目的:
- 开发一种新的氧化还原导向方法,用于识别没有个体度或毒性数据的有毒TP.
- 确定臭氧化废水中主要的致病性毒素.
主要方法:
- 综合过程,包括毒理学评估,光EMS,HRMS检测和生态毒性评估.
- 降解化以诱导毒性和光度的变化.
- 通过减少硫酸和实际废水臭氧化进行验证.
主要成果:
- 减少显著降低毒性和增加光,显示出线性关系.
- 超过十个单体/二元体p-二 (p-BQ) TPs被确定为主要毒素.
- p-BQ TPs的毒性明显高于前体和其他TP.
结论:
- 氧化还原导向方法有效地识别了TP中主要的毒性贡献者.
- 新出现的p-BQ是水生生态系统安全在处理芳香污染废水时的重要关注点.
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