营养物质去除效率,酶活动和微生物群体对生物电气anammox系统中电流和电压的反应
Yihong Chen1, Xuejie He2, Ying Zhang2
1Power Construction Corporation of China Guiyang Engineering Corporation Limited, Guiyang, 550081, China.
Journal of environmental management
|February 13, 2024
概括
这项研究研究了生物电气Anammox (BEA) 膜生物反应器 (MBR),在特定电流强度和电压下发现了最佳的去除. 高压导致由于细胞亡而导致系统崩,影响微生物群落.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 电化学 电化学 电化学
背景情况:
- 废水处理依赖于有效的营养物质去除.
- 生物电气系统为增强生物过程提供了新的方法.
- 了解微生物对电刺激的反应对于优化治疗至关重要.
研究的目的:
- 评估电气参数对生物电气阿纳莫克斯 (BEA) 膜生物反应器 (MBR) 中营养物质去除的影响.
- 分析微生物群落在不同电流强度和电压水平下的演变.
- 为了确定和去除的最佳操作条件.
主要方法:
- 使用了一个生物电动Anammox (BEA) 膜生物反应器 (MBR).
- 不同的电流强度 (64-83 mA) 和电压水平 (1.5-3.5V).
- 分析了营养去除效率,微生物群落结构 (包括anammox细菌和脱剂),酶活动和细胞活力 (流细胞计,TEM).
主要成果:
- 去除效率在电流高达83mA时增加,然后平稳.
- 去除与Fe2+释放有关,受电极电流的影响.
- 移除的峰值在2.0V (94.02%±1.19%),在较高的电压下由于细胞亡/溶解而下降.
- 候选人布罗卡迪亚占主导地位,而候选人Kuenenia和Chloroflexi被抑制;由于释放的有机物质,蛋白质细菌增加.
结论:
- 电气参数显著影响BEA MBR中的营养物质去除和微生物动态.
- 最佳电压对于防止因过度细胞亡引起的系统崩至关重要.
- BEA的MBR显示出改善废水处理的潜力,但微生物社区的转移需要谨慎管理.
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