在MBfR中使用甲作为唯一的碳来源同时进行脱和去除
Xiaowei Lv1, Huihui Zhou1, Jie Yang1
1State Key Lab of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
Journal of environmental management
|August 25, 2025
概括
在膜生物膜反应器 (MBfR) 中,有氧甲氧化与脱 (AME-D) 相结合有效地去除甲和. 这项研究表明,MBfR还可以增强的去除和微生物的稳定性,特别是在较低的温度下.
科学领域:
- 环境微生物学
- 污水处理工程
- 生物地质化学
背景情况:
- 在膜生物膜反应器 (MBfR) 中,有氧甲氧化与脱 (AME-D) 相结合,已被认为可以减少甲排放并改善废水处理中的去除.
- 然而,AME-D对 (P) 移除和驱动这些过程的微生物群体的影响仍未得到充分研究.
研究的目的:
- 在不同的季节性温度下,研究AME-D在MBfR同时氧化甲,脱和的有效性.
- 阐明微生物组组合机制和MBfR技术在增强营养除去和微生物稳定性的作用.
主要方法:
- 使用有氧甲氧化与脱 (AME-D) 过程建立膜生物膜反应器 (MBfR).
- 监测不同季节温度 (例如30°C) 的酸盐和去除效率.
- 使用测序技术和中性社区模型 (NCM) 分析进行微生物组分析,以评估社区组合和网络连接.
主要成果:
- 在30°C下,MBfR系统的酸盐清除效率达到了72%.
- 随着温度的下降,除效率提高到86-99%.
- 丰富特定的微生物群 (甲基细菌,Caenimonas,Gemmatimonas) 促进了综合的营养物质去除;确定性过程控制了微生物组的组合,MBfR增强了微生物的多样性和稳定性.
结论:
- 在MBfR中,AME-D为废水处理中同时氧化甲,和提供了一个强大的平台.
- 该技术促进了微生物群体的稳定性和多样性,提高了整体处理效率,特别是在波动的环境条件下.
- 这种综合方法为节能废水处理提供了一个有前途的战略,具有显著的温室气体减排潜力.
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