基于Anammox的多路径生物去除用于高氨废水处理:在饥饿战略下的试点规模应用中快速启动和社区响应
Guangchao Si1, Li Zhang1, Jingfeng Gao1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.
Environmental research
|March 6, 2026
概括
一种新的饥饿策略触发了内源发酵,以实现废水处理中自给自足的酸盐去除. 这种方法增强了anammox细菌并减少了污泥,提高了整体去除效率.
科学领域:
- 环境微生物学 环境微生物学
- 水处理工程水处理工程
- 生物技术是生物技术.
背景情况:
- 来自anammox工艺的酸盐副产品限制了高氨废水中的废水合规性.
- 现有的酸盐去除方法通常需要外部碳来源,这带来了实际挑战.
研究的目的:
- 开发一种碳自给自足的系统,用于处理含有高氨的废水.
- 研究微生物群落的动态和驱动在饥饿条件下的去除的生态过程.
主要方法:
- 建造了一个2000升系统,集成部分化,亚纳摩克斯,脱化和现场发酵 (SNADF).
- 使用化学氧气需求 (COD) 限制的饥饿策略,诱导细胞外聚合物质 (EPS) 的内源发酵.
- 进行了微生物社区分析,包括关键品种的相对丰富性和社区组合分析.
主要成果:
- 该SNADF系统实现了95.9%的总去除和91.5%的污泥减少废水与828毫克N/L.
- 饥饿诱导了功能性利基区分,丰富了异体细菌 (Candidatus Kuenenia) 并促进了水解酸性细菌 (OLB8) 转化EPS.
- 随机过程,包括分散限制和生态漂移,受治理的微生物社区组合和功能差异化.
结论:
- 通过饥饿策略进行内源发酵,在基于anammox的系统中为碳自给自足的酸盐去除提供了一个可行的途径.
- 由随机过程驱动的功能性利基区分对于有效的除和污泥减少至关重要.
- 这种方法增强了anammox在高氨废水处理中的工程应用.
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