通过与高效的缩细菌 (Bacillus velezensis M3-1) 结合,提高了无氧氨氧化过程的去除率
Wanlian Yuan1, Dongmin Yang2, Xupo Zhang3
1School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China; Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Journal of environmental sciences (China)
|July 5, 2024
概括
百日菌 velezensis M3-1有效地将酸盐转化为酸盐,增强了的去除. 这项研究开创了协同作用的anammox和M3-1系统,提高了废水处理效率超过12%.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理技术 废水处理技术
- 生物地质化学循环的过程
背景情况:
- 从废水中去除气对于环境保护至关重要.
- 安纳莫克斯 (无氧氧化) 是一种高效的去除工艺,但由于酸盐的可用性而受到限制.
- 从建筑湿地中分离出来的Bacillus velezensis M3-1显示了酸盐转化潜力.
研究的目的:
- 为了研究将Bacillus velezensis M3-1与anammox结合以提高去除的可行性.
- 为了验证M3-1在无氧反应器中将anammox生产的酸盐转化为酸盐.
- 为了优化碳与 (C/N) 的比率,以协同去除.
主要方法:
- 从Myriophyllum aquaticum建造的湿地中分离和鉴定Bacillus velezensis M3-1的特征.
- 在无氧反应器中与anammox细菌共同培养M3-1.
- 在不同的C/N条件下研究M3-1的酸盐降解.
- 分析去除功效 (NRE) 和功能基因.
主要成果:
- 百菌 velezensis M3-1有效地将酸盐 (NO3 - N) 转化为酸盐 (NO2 - N),碳来源要求不严格.
- M3-1优先使用碳来源,而不是其他无化细菌.
- 结合的anammox和M3-1系统显示,与单独的anammox相比,NRE增加了12.1%,C/N比率为2:1.
- 功能性基因分析表明,M3-1可以作为降酸盐的细菌.
结论:
- 亚纳莫克斯和Bacillus velezensis M3-1的协同组合是从废水中去除的可行和有效策略.
- 百菌 velezensis M3-1的高酸盐降解率通过转化其酸盐副产品来补充anammox过程.
- 这种结合系统为废水管理提供了改进的方法.
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