由迪拉蒙克斯占主导地位的微生物群体用于从废水中生物提取
Yu Hu1, Yulin Wang2, Runhua Wang3,4
1State Key Laboratory of Microbial Technology, Shandong University, Qingdao, P. R. China.
Applied microbiology and biotechnology
|June 21, 2024
概括
直接氨氧化 (Dirammox) 细菌使用氧胺在活性污泥中成功丰富,证明了它们在废水处理中生物去除的潜力. 三种Dirammox菌株被分离出来,并证实了它们的去除能力.
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:
- 直接氨氧化 (Dirammox) 是废水处理的一个有前途的生物去除途径.
- 在活性污泥中Dirammox细菌的选择性丰富仍未得到充分研究.
研究的目的:
- 研究在活性污泥中选择性丰富Dirammox细菌的可行性.
- 从实验室规模的生物反应器中分离和描述Dirammox菌株.
主要方法:
- 使用合成废水和氧胺作为选择性剂的实验室规模生物反应器的运行.
- 隔离和鉴定Dirammox细菌菌株.
- 使用分子技术量化迪拉莫克斯丰度.
- 对去除率的评估.
- 对比的基因组分析.
主要成果:
- 在活性污泥中成功丰富了一种以迪拉蒙克斯为主导的微生物群体.
- 有三种迪拉莫克斯菌株,它们是Alcaligenes aquatilis SDU_AA1,Alcaligenes aquatilis SDU_AA2和Alcaligenes sp. SDU_A2,已被隔离出来. 这是一个很好的例子.
- 占主导地位的菌株SDU_A2的除率 (32.35%) 与其他菌株相比显著更高.
- 基因组分析揭示了隔离菌株之间代谢模块的差异.
结论:
- 氧胺有效地选择活性污泥中的Dirammox细菌.
- 迪拉莫克斯细菌可以被确立为新型生物和碳去除过程中的关键功能微生物.
- 需要进一步的研究来稳定这些社区,以便实际应用.
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