在高盐度条件下的移动床生物膜反应器中,通过专门的定数感应细菌,增强了污染物去除
Zhixiang Gao1, Ying Wang1, Hu Chen2
1State Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan, 030024, China.
Environmental research
|August 15, 2025
概括
添加了一个特定的定数感应 (QS) 菌株,Vibrio sp. 在高盐条件下,LV-Q1显著提高了移动床生物膜反应器 (MBBR) 的性能. 这种生物增量改善了污染物去除和生物膜结构,以有效处理废水.
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:
- 移动床生物膜反应器 (MBBR) 对于废水处理是有效的,但在高盐环境中面临挑战.
- 定数感应 (QS) 调节细菌的行为和生物膜的形成,为过程优化提供了潜力.
- 提高生物膜活性和稳定性对于提高生物反应器性能至关重要,尤其是在压力条件下.
研究的目的:
- 为了研究一个特定的定数感应 (QS) 菌株,Vibrio sp.的影响. LV-Q1,关于加速生物膜形成和提高MBBR在高盐环境中的运行性能.
- 评估使用QS细菌进行生物增殖的有效性,以消除盐水废水中的污染物.
- 分析生物膜特征的变化,微生物群落结构,以及高盐MBBR系统中QS的作用.
主要方法:
- 一个MBBR与Vibrio sp.的生物增强. 在高盐环境中的LV-Q1.
- 生物增强 (R1) 和非生物增强 (R0) 反应堆之间的污染物去除率 (NH+4-N,COD) 的比较.
- 对生物膜成分 (多糖,蛋白质) 和信号分子度的分析.
- 使用分子技术进行微生物社区结构分析.
主要成果:
- 使用Vibrio sp.进行生物增量. LV-Q1显著增加了NH+4-N和COD去除率,分别增加了13.20%和10.15%.
- 观察到增强的生物膜活性和粘附性,在生物增强反应器中,多糖类增加了41.66%,蛋白质增加了87.66%.
- 维布里奥病毒 sp. LV-Q1成功增殖到59.81%的相对丰度,促进了功能性微生物的丰富,如Nitrincola,Marinobacterium和Vibrio.
结论:
- 增加了QS菌株Vibrio sp. 的添加. LV-Q1有效地加速生物膜的形成,并提高了MBBR在高盐废水处理中的性能.
- 使用QS细菌进行生物增量可以通过增加细胞外聚合物物质和促进有益的微生物群落来提高污染物去除效率和生物膜稳定性.
- 这项研究提出了一种新的策略,用于优化MBBR在具有挑战性的高盐度条件下处理含废水.
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