凝固定驱动高效anammox的机制在主流部分化/anammox过程中:结构特征和多视角微生物分析
XiaoTong Wang1, SongYan Qin1, LiXin Zhao1
1School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China.
在新型填充剂中封装的anammox细菌 (AnAOB) 显著提高了去除效率. 这种固定填充器支持多样化的AnAOB社区,优于废水处理的传统颗粒型污泥.
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:
- 部分化/亚纳摩克斯 (PN/A) 对于有效的去除至关重要.
- 封装anammox细菌 (AnAOB) 提供了提高性能的潜力.
- 了解主流PN/A中封装AnAOB的机制至关重要.
研究的目的:
- 阐明封装AnAOB在主流PN/A中驱动去除的机制.
- 为了比较固定AnAOB填充剂与常规anammox颗粒污泥 (AnGS) 的性能.
- 评估微生物社区结构和在固定系统中的相互作用.
主要方法:
- 在主流PN/A工艺中使用了anammox固定填充剂和anammox颗粒污泥 (AnGS).
- 量化了去除率,并通过元基因组学分析了微生物群体的组成.
- 检查了固定填充剂和AnGS的物理结构.
主要成果:
- 使用固定填充剂实现了1.21±0.02kgN·(m3·d) -1的高去除率.
- 固定填充物表现出丰富的微孔,均的AnAOB分布和稳定的聚合.
- AnGS显示了表面裂和内部空洞,与填充剂相比,循环效率较低.
结论:
- 丰富的微孔结构和固定填充物的稳定聚合是有效去除的关键.
- 这种填充剂中的封装AnAOB支持多样化和协调的微生物群体,提高PN/A性能.
- 这项研究支持封装AnAOB的主流应用,以改善废水管理.
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