上游部分脱/anammox工艺的性能优化和去除机制
Youqi Tao1, Rui Shi1, Linjing Li1
1State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China.
Journal of environmental management
|October 12, 2023
概括
机械和生物载体改善了部分脱/亚纳摩克斯 (PDA) 反应器,防止了污泥漂浮和增强了去除. 由于质量转移的优越性,机械动证明更有效.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 泥漂浮和不均的质量转移是上游部分脱/anammox (PDA) 反应堆中的关键问题.
- 在废水处理中有效的除取决于优化这些反应器系统.
研究的目的:
- 为了解决PDA反应堆中的污泥漂浮和质量转移问题.
- 根据不同的修复策略,研究去除机制.
- 为了比较生物载体与机械的疗效.
主要方法:
- 运行两个上游PDA反应堆,R1用生物载体和R2用机械.
- 带有部分脱 (PD) 和anammox污泥的无氧化反应堆.
- 利用16S rRNA测序来分析微生物社区的组成.
- 定量化去除率和anammox和脱的贡献.
主要成果:
- 这两种策略都显著抑制了污泥上游,并改善了沉性能.
- 总去除率达到了89% (R1) 和92% (R2).
- 与R1 (61.92%) 相比,R2反应堆 (机械) 的脱细菌数量 (67.11%) 更高.
- 反应器R1显示出比R2 (9.06%) 更多的anammox细菌 (14.53%).
- 去除主要是由阿纳莫克斯 (82.17%在R1,85.07%在R2) 与脱结合驱动的.
结论:
- 生物载体和机械都有效地修复了PDA反应堆中的污泥漂浮和不均的质量转移.
- 机械动由于增强的质量转移,对反应堆性能产生了更显著的积极影响.
- 优化PDA反应堆运行对于废水处理中有效的生物去除至关重要.
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