新型不完整的化调节的多路径anamox工艺,用于从真正的城市废水中提升提取的先进处理
Chengkun Kao1, Qiong Zhang1, Jinjin Liu1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
Bioresource technology
|February 8, 2026
概括
一种新的不完整化策略增强了主流的阿纳莫克斯细菌,在城市废水中实现了93.3%的去除. 这种方法通过通过多个途径调节酸盐供应来增强anammox的活性和稳定性.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物技术是生物技术.
背景情况:
- 主流的anammox工艺面临着由于酸盐供应不稳定以及市政废水中其他细菌的竞争而面临的运营挑战.
- 在复杂的废水环境中,自营性亚纳摩克斯细菌的竞争力有限.
研究的目的:
- 建立和调节一个多路径的anammox工艺,使用不完整的化进行增强的去除.
- 调查不完全化对anammox细菌的活动,丰富性和社区结构的影响.
- 评估拟议战略在实际市政废水处理中的效率和稳定性.
主要方法:
- 实施一个短期的氧胺诱导策略 (5 mg/L) 来启动不完全的化.
- 监测去除效率,基质度 (NH4+,NO2-,NO3-),以及C/N比率.
- 使用分子技术 (基因组学和转录组学) 分析anammox细菌的活动和丰度.
- 评估功能基因比率以了解微生物社区协调.
主要成果:
- 在市政废水中,在低C/N比率为2.5的情况下,实现了93.3%的先进的除效率.
- 显著增加的亚纳莫克斯细菌活动 (6.2至16.7毫克NH4+-N/gMLVSS/d) 和丰度 (5.6×10^7至9.0×10^8基因拷贝/gVSS).
- 丰富了Candidatus Brocadia,抑制了竞争中的微生物,并加强了部分化 (PN) 和部分脱 (PD) 途径.
- 在基质供应途径之间表现出强有力的协调,AOB/NOB和 (narG + napA) / (nirS + nirK) 的比率增加.
结论:
- 不完全化是一种可行的策略,可以启动和调节多路径的anammox过程,克服主流的操作瓶.
- 开发的方法通过优化化物供应和微生物相互作用,提高了去除效率和微生物群体的稳定性.
- 这种方法为市政废水处理中主流的anammox应用提供了一个有希望和强大的解决方案.
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