使用集成的焦和部分脱 anammox 工艺进行增强和强大的去除
Shuo Wang1, Tan Jiang1, Xiang Hao1
1National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing, 100124, PR China.
Journal of environmental management
|September 6, 2024
概括
这项研究引入了在废水处理中采用化物集成系统进行部分脱和anammox (Z-PDA). 这种创新方法实现了高去除效率和抗影响波动的弹性.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 安纳莫克斯 (无氧氧化) 提供了成本高效的去除,但面临着影响比率需求和酸盐副产品的挑战.
- 部分脱和anammox (PDA) 系统可以改善去除,但需要严格的操作控制.
研究的目的:
- 在上游无氧污泥床 (UASB) 反应堆中研究一种新型的化物集成部分脱和anammox (Z-PDA) 系统的有效性.
- 为了评估系统在波动的影响条件下的性能,并阐明热带石的作用.
主要方法:
- 实施一个UASB反应堆,将焦石与部分脱和anammox工艺结合起来.
- 使用16S rRNA基因测序来识别关键的微生物群落 (Candidatus Brocadia,Thauera).
- 进行了元基因组分析,以评估功能基因和涉及去除的代谢途径.
主要成果:
- 实现了93.0±2.0%的超高去除效率 (NRE).
- 石通过吸附和脱离氨来促进强的去除,适应可变的NO2--N到NH4+--N比率.
- 显著丰富了阿纳莫克斯细菌 (Candidatus Brocadia49.2%) 并确定了关键的去除基因 (nrfA/H,narG/H/I).
结论:
- Z-PDA系统为废水处理中的去除提供了弹性和高效的解决方案.
- 石作为生物载体,在管理氨动态方面发挥着至关重要的作用,增强了系统的稳定性.
- 这项研究提供了对PDA系统中热带石机制及其在污水处理中的实际应用的基本见解.
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