在短期压力下, perfluorooctanoic 酸对非化去除系统的作用
Yumeng Yan1, Shaopo Wang1, Lingjie Liu1
1School of the Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin 300384, China.
perfluorooctanoic 酸 (PFOA) 最初在废水处理中增强了酸盐的去除,但后来抑制了它. 这项研究澄清了PFOA的PFOA.
科学领域:
- 环境科学 环境科学
- 水处理工程水处理工程
- 环境化学环境化学
背景情况:
- perfluorooctanoic 酸 (PFOA) 是一种广泛存在的水生污染物.
- 酸对非化法去除的影响尚不清楚.
研究的目的:
- 调查PFOA对非化去除系统的短期影响.
- 阐明这些系统对PFOA暴露的反应机制.
主要方法:
- 进行了批量实验,以评估PFOA的影响.
- 分析包括和去除,COD去除,ROS度,酶活性和污泥特性.
主要成果:
- PFOA最初通过无氧释放增强了酸盐的去除,但没有影响的去除.
- 增加的PFOA导致更高的ROS和酶活性,降低PN/PS比率,以及更松的污泥.
- 在第二个循环中,效果从增强转向抑制去除.
结论:
- 酸会影响去化去除机制,其效果会随着时间的推移而变化.
- 研究结果为使用这些系统处理PFOA污染的废水提供了洞察力.
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