通过培养排的糖原积聚生物来实现内生部分脱
Lianrong Zhao1, Ziwei Chen1, Xiaoling Zhang1,2,3
1School of Water and Environment, Chang'an University, Xi'an, People's Republic of China.
Environmental technology
|September 5, 2024
概括
无化糖原积聚生物 (DGAO) 已成功诱导为anammox过程提供酸盐. 这项研究突出了DGAOs的重点.
科学领域:
- 环境微生物学环境微生物学
- 污水处理 污水处理 污水处理
- 生物技术是生物技术.
背景情况:
- 无氧氨氧化 (anammox) 有效地去除,但由于酸盐的可用性而受到限制.
- 内源部分脱 (EPD) 是一种有前途的方法,可以为anammox提供酸盐.
- 据假设,脱化糖原积聚生物 (DGAO) 是驱动EPD的.
研究的目的:
- 在一个测序批量反应堆 (SBR) 中丰富DGAO.
- 调查DGAO在酸盐生产中的EPD中的作用.
- 在EPD期间分析微生物社区结构.
主要方法:
- 通过使用的限制和取消,逐渐丰富GAO.
- 通过添加酸来诱导DGAO.
- 监测酸盐转化为酸盐的转化率 (NTR).
- 使用16S rRNA基因测序进行微生物社区分析.
主要成果:
- DGAO成功缩,在碳源转换中贡献了高达96%的碳,在酸盐减少中贡献了95%.
- 最大酸盐转化为酸盐的转化率 (NTR) 达到80%.
- 兼容体在微生物群体中占主导地位 (31.12%),而PAO则很少 (1.02%).
结论:
- 在EPD过程中,DGAO在稳定化物生成方面发挥着至关重要的作用.
- 这种DGAO驱动的EPD可以有效地支持anammox进程.
- 微生物洞察力揭示了相容因子作为DGAO介导的EPD的关键参与者.
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