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Updated: May 28, 2025

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Published on: January 22, 2015

揭示微生物转换的机制,通过适应生物阳极增强氨去除和减少N₂O排放的潜力

Jiachao Yao¹, Yuxin Zhou¹, Danjun Jin²

¹Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.

Journal of hazardous materials

|February 12, 2025

概括

在生物电化学系统 (BES) 中适应生物电极的潜力显著增强了氨去除和减少了氧化 (N2O) 排放. 这种优化提高了废水处理的转化效率和微生物活性.

科学领域:

环境科学环境科学
微生物学微生物学
电化学电化学电化学

背景情况:

从废水中去除氨对于环境保护至关重要.
生物电化学系统 (BES) 为废水处理提供了一个有前途的方法.
控制生物电极潜力是优化BES性能的关键.

研究的目的:

研究增强氨去除和减少N2O排放的机制,通过在BES中适应生物电极潜力来减少N2O排放.
为了确定转换的最佳生物电极潜力.
阐明与潜在适应相关的微生物和电化学变化.

主要方法:

启动和优化BES与不同的参数 (透气,阻力,pH).
循环电压测量,以确定合适的生物阳极适应潜力.
微生物群体分析以确定主导品种.
电化学试验用于评估电子传递机制.

主要成果:

在0.1V时实现了最佳的去除 (83.7%) 和N2O减排 (2.8倍).
确定了主要的属:Sphaerocheata,Petrimonas和Lentimicrobium. 这些属是主导的.
潜在的适应增强了直接和间接的细胞外电子转移,而 riboflavin 间接的 MET 发挥了关键作用.
细胞内电子转移和电子运输系统活动增加了3.4倍.

结论:

生物阳极潜在的适应是一种有效的策略,可以增强氨的去除和减轻BES中的N2O排放.
潜在的适应性调节氨降解路径,减少中间积累.
这项研究提供了关于BES中转化机制的见解,以改善废水处理.

关键词:

转换路径的转换路径电子转移是电子的转移.酶活性的酶活动.排放量为N(2) O的排放量化和脱化过程中的化和脱.

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