用Acinetobacter harbinensis HITLi7T增强低温化生物过器,以在工程应用中有效去除氨
Caihua Bai1, Weiguang Li2, Longyi Lv3
1School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Bioresource technology
|October 17, 2024
概括
Acinetobacter harbinensis HITLi7T增强了低温化生物过器,用于清除氨. 这种细菌提高了化细菌的耐寒性,提供了一种经济和环保的水处理解决方案.
科学领域:
- 环境微生物学环境微生物学
- 水处理技术水处理技术.
背景情况:
- 低温阻碍生物氨 (NH3-N) 从水中去除.
- 化生物过器对于废水处理至关重要,但在寒冷条件下难以使用.
研究的目的:
- 研究Acinetobacter harbinensis HITLi7T在增强低温化生物过器 (LTNBs) 的有效性.
- 评估HITLi7T对低温下NH3-N去除效率和微生物群落动态的影响.
主要方法:
- 使用了一个20,000 m3/d的LTNB,注射了Acinetobacter harbinensis HITLi7T.
- 分析了2°C的NH3-N去除速率,空床接触时间为3小时.
- 使用PICRUSt2和FAPROTAX进行微生物群体分析和代谢途径阐明.
- 进行了LTNB的生命周期评估.
主要成果:
- 在2°C时,LTNB实现了1.21.5 mg/L的NH3-N去除水平.
- 观察到关键的化细菌 (Nitrosomonas,Nitrosospira,Nitrospira,Candidatus_Nitrotoga) 的显著丰富.
- PICRUSt2和FAPROTAX证实了化途径,并建议HITLi7T促进化细菌的丰富.
- 生命周期评估表明,LTNB是经济和环保的.
结论:
- Acinetobacter harbinensis HITLi7T有效地提高了LTNB在NH3-N去除方面的性能.
- 在生物过器中,HITLi7T提高了化细菌的耐寒性.
- 增强的LTNB显示了在冷气候水处理中实际应用的巨大潜力.
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