增强有氧颗粒污泥与微电场用于硫甲醇降解:效率,机制和微生物群落
Xia Zhao1, Weina Pei1, Yihan Qi1
1College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, PR China.
Chemosphere
|March 18, 2024
概括
将微电场应用于有氧颗粒污泥 (AGS) 提高了其颗粒度,并提高了硫甲醇 (SMZ) 降解的88%. 这种绿色方法提高了废水处理的AGS性能.
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:
- 像硫甲醇 (SMZ) 这样的药物是废水中的持久污染物.
- 有氧颗粒污泥 (AGS) 是废水处理的一个有前途的技术,但可以进一步优化.
- 电化学系统为增强生物废水处理过程提供了潜力.
研究的目的:
- 建立和研究用于SMZ降解的有氧颗粒污泥电化学系统 (AGES).
- 为了优化微电场参数,增强SMZ去除.
- 阐明 AGES 中的降解途径和微生物群落转移.
主要方法:
- 一个有氧颗粒污泥反应堆被改造为微电场 (AGES).
- 扫描电子显微镜 (SEM) 和X射线衍射 (XRD) 描述了污泥的特性.
- 液体染色学-质谱学 (LC-MS) 确定了降解产物.
- 进行了动态分析和微生物社区分析.
主要成果:
- 在3V和800mm2的电极面积下,达到88%的最佳SMZ降解率.
- SMZ降解跟随了第二阶动力学,速度常数为0.001 L mol-1·min-1.1.
- 占主导地位的细菌,包括 Pseudomonas,增加,有助于SMZ和营养物质的减少.
- 微电场刺激改善了污泥颗粒和微生物社区结构.
结论:
- 该AGES系统有效地提高了SMZ降解和污泥颗粒化.
- 微电场有选择地丰富有益的微生物,以去除污染物.
- 本研究提出了一种绿色和高效的方法,用于升级废水处理的AGS技术.
关键词:
有氧颗粒污泥的有氧颗粒污泥生物降解 生物降解硫甲佐 (sulfamethoxazole) 是一种硫甲佐 (sulfamethoxazole) 的一种化合物.污水处理 污水处理 污水处理微生物的电化学.更多相关视频
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