在部分脱/安纳莫克斯系统中实现高效的anammox贡献和功能细菌的丰富:性能,微生物进化和相关性分析
Zilong Hou1, Wenyi Dong2, Yanchen Li1
1School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
Bioresource technology
|November 10, 2024
概括
优化废水处理的部分脱/亚纳摩克斯 (PD/A) 需要丰富功能性细菌. 酸盐与的比率,反应时间和温度的战略调整显著提高了自营去除效率.
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
- 生物地质化学生物地质化学
背景情况:
- 部分脱/亚纳摩克斯 (PD/A) 是市政废水处理的一个有前途的技术.
- 丰富功能性细菌以有效的自营养去除仍然是一个关键的挑战.
- 了解操作参数对PD/A性能的影响至关重要.
研究的目的:
- 调查操作参数对市政废水中部分脱/亚纳摩克斯 (PD/A) 性能的影响.
- 确定丰富关键功能细菌的策略,包括部分脱和anammox细菌.
- 量化阿纳莫克斯对整体去除的贡献.
主要方法:
- 使用15N同位素追踪技术来确定anammox贡献率.
- 使用分子技术分析微生物群落,以识别丰富的细菌种群.
- 将操作参数 (影响NO3--N:NH4+--N比率,反应时间,温度) 与细菌数量和去除性能相关联.
主要成果:
- 在优化条件下,Anammox细菌在提取的过程中贡献了高达94.8%.
- 延长反应时间有效地增强了部分脱和anammox活性.
- 特定的影响酸盐与的比率和低温有利于丰富关键细菌,如细菌,Thauera和Candidatus Brocadia.
结论:
- 合理的操作策略,包括调整NO3--N:NH4+--N比率和反应时间,可以有效地提高anammox的贡献.
- 低温可以有利于丰富特定的功能性细菌,如Thauera和Candidatus Jettenia.
- 这项研究提供了对优化PD/A流程的见解,以改善废水处理中的去除.
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