作为无氧氧氧化氨无氧氧化氧化的不溶性电子受体的氧化活性生物炭
Hao Yue1, Jiajia Xu2, Xiaohong Guan3
1School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
Journal of environmental management
|December 16, 2025
概括
反氧活性生物炭作为无氧氧化 (anammox) 的电子受体,实现超过95%的去除. 这种可持续的方法绕过了化物要求,为废水处理提供了一种新的方法.
科学领域:
- 环境微生物学环境微生物学
- 生物技术是生物技术.
- 可持续的化学可持续的化学
背景情况:
- 无氧氨氧化 (anammox) 是一个关键的去除过程.
- 传统的anammox依赖于亚酸盐,这给运营带来了挑战.
- 开发替代电子受体对于anammox效率至关重要.
研究的目的:
- 研究氧化还原活性生物炭作为anammox的电子受体的潜力.
- 为了阐明生物炭介导 anammox 的机制.
- 探索生物炭驱动的去除技术的可行性.
主要方法:
- 使用anammox联盟和生物炭进行批量化实验.
- 同位素追踪证实生物炭作为电子沉降器的作用.
- 电化学,光谱和高通量测序分析.
- 甲基因组分析和代谢重建.
主要成果:
- 使用生物炭作为唯一的电子接受器实现了超过95%的总去除.
- 在0.77-1.18 mmol-N·d−1·g−1 VSS.的速度下,生物炭促进了anammox.
- 在生物炭上的表面类和基N组被确定为关键的电子接受位点.
- 观察到 *Candidatus Brocadia* 的优势,以及细胞外电子转移 (EET) 基因的上调.
- 在生物炭驱动的anammox中阐明了一个独特的氧胺路径.
结论:
- 反氧活性生物炭有效地作为anammox的不溶性电子受体.
- 生物炭驱动的anammox绕过了化物供应限制,提供了一个可持续的替代品.
- 这项研究有助于人们更好地理解Anamox中的EET,并促进了节能去除的方法.
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