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在压力下的强度:在对暴露于基和多基物质 (PFAS) 的批量反应器的测序中,有氧颗粒污泥 (AGS) 动态

Zanina Ilieva¹, Reza Salehi¹, Hussain Aqeel²

¹Department of Civil Engineering, Toronto Metropolitan University, 350 Victoria Street, Toronto, Ontario M5B 2K3, Canada.

Journal of hazardous materials

|March 22, 2025

概括

有氧颗粒污泥 (AGS) 有效地从废水中去除和多基物质 (PFAS). 适应AGS生物质可以提高其稳定性和性能,从而改善污染物清除和废水质量.

科学领域:

环境科学环境科学
环境工程环境工程
微生物学微生物学

背景情况:

和多基基物质 (PFAS) 是持久的环境污染物.
传统的废水处理方法与PFAS的去除斗争.
有氧颗粒污泥 (AGS) 为先进的废水处理提供了潜在的解决方案.

研究的目的:

调查AGS在去除各种PFAS化合物的有效性.
为了比较PFAS适应的AGS与未适应的AGS的性能.
评估PFAS对AGS稳定性和生物质特性的影响.

主要方法:

两个测序批量反应堆 (SBR) 运行了247天.
一个反应堆 (R1-CTRL) 使用未适应的AGS,而另一个 (R2-PFAS) 使用PFAS适应的AGS.
使用了添加四种代表性PFAS (PFPeA,PFOA,PFBS,PFDS) 的合成废水.

主要成果:

两个反应堆都实现了超过95%的COD,氨和的去除.
与对照组相比,PFAS适应反应器 (R2-PFAS) 的弹性和稳定性得到改善.
消除PFAS的效率因化合物而异,PFDS显示近100%的消除.
消除PFPeA,PFBS和PFOA的效率在-71%至100%之间.

结论:

AGS是废水处理中PFAS去除的一个有前途的技术.
生物质适应对于在PFAS存在时提高AGS性能和稳定性至关重要.
这种方法可以提高整体废水处理效率和废水质量.

关键词:

有氧颗粒污泥的有氧颗粒污泥在化过程中,化金融机构的PFBS是什么意思在PFDS系统中,我们可以使用这就是PFOA的PFOA.这是PFPeAA.perfluorinated PFAS 是一种含有高化物 PFAS 的药物.

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