通过一种基于膜的新型分离器调解细菌相互作用,以增强生物去除
Yue Fu1,2, Ronghua Xu1,2, Boyi Yang1,2
1School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, PR China.
Applied and environmental microbiology
|July 5, 2023
概括
在废水处理厂 (WWTP) 中,一种新的基于膜的分离器 (MBSR) 在空间上分离微生物. 这通过丰富有益的微生物联盟和改善代谢分工来增强去除.
科学领域:
- 环境微生物学环境微生物学
- 生物技术是生物技术.
- 废水处理工程 废水处理工程
背景情况:
- 在废水处理厂 (WWTP) 中有效的营养去除依赖于调节微生物亚群.
- 工程微生物联盟需要策略来管理相互作用和代谢功能.
- 当前的方法往往难以精确控制微生物社区的结构和功能.
研究的目的:
- 建议和评估一个基于膜的分离器 (MBSR) 工程微生物联盟在WWTPs.
- 研究MBSR对微生物群落结构和去除效率的影响.
- 展示一种在废水处理过程中调节代谢分工的方法.
主要方法:
- 在无氧/有氧膜生物反应器 (MBR) 中集成基于膜的分离器 (MBSR).
- 长期运营监测去除和氧减少潜力.
- 16S rRNA测序和元基因组分析以表征微生物群落.
主要成果:
- 与对照MBR (21.68 ± 4.23 mg/L TN废水) 相比,使用MBSR的实验MBR实现了显著更高的去除 (10.45 ± 2.73 mg/L TN废水).
- MBSR导致无氧中氧气减少潜力较低 (-82.00 mV与83.25 mV相比),有利于脱.
- MBSR丰富了酸性联盟,促进了挥发性脂肪酸的生产和转移到去化的细菌,增加了它们的数量.
结论:
- MBSR是一种实用的工程解决方案,用于在WWTP中空间结构化微生物群落.
- 与混合微生物种群的系统相比,这种方法可以实现更高的去除效率.
- 该研究提供了一种创新的方法,用于精确控制微生物亚群和生物废水处理中的代谢分工.
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