在现场污泥发酵驱动的多种生物去除途径 (SFBNR) 的试点研究:根据共发生网络分析揭示微生物协同机制
Xuepeng Fan1, Li Zhang1, Shuang Lan1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing 100124, China.
Water research
|November 2, 2023
概括
污泥发酵驱动的生物去除 (SFBNR) 有效地利用废物活性污泥 (WAS) 进行废水处理. 这项研究将SFBNR扩展到一个大型反应堆,实现了高除和污泥减少效率.
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:
- 废物活性污泥 (WAS) 提出了处理方面的挑战.
- 生物除 (BNR) 对于废水处理至关重要.
- 泥发酵驱动的BNR (SFBNR) 提供了高效的碳利用 WAS.
研究的目的:
- 将SFBNR扩展到一个38 m3的反应堆.
- 评估SFBNR在大规模废水处理中的性能.
- 阐明驱动SFBNR性能的微生物机制.
主要方法:
- 大规模反应堆运行 (38 m3).
- 污水处理和污泥减少效率的评估.
- 功能性细菌的同时发生网络分析.
- 对生物膜污泥 (BS) 和悬浮污泥 (SS) 的微生物群落进行分析.
主要成果:
- 每天处理16废水和500升WAS.
- 在185天后,证明了高的脱效率 (93.22%) 和污泥减少效率 (72.07%).
- 确定了关键的微生物参与者 (例如,Anaerolineaceae,Denitratisoma,Candidatus Brocadia) 和它们的协同作用.
- 在BS中观察到无氧氨氧化细菌 (AnAOB) 的显著丰富,悬浮生物膜接口作为anammox热点.
结论:
- 在大规模的废水处理中,SFBNR是有效的,可显著减少污泥.
- 微生物相互作用,特别是涉及碳代谢和循环,是SFBNR性能的关键.
- 悬浮生物膜接口促进了AnAOB活动,增强了去除.
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