相关实验视频

Updated: Jun 23, 2025

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Published on: October 15, 2015

外部氧化还原对增强了在低温下anammox污泥活动:洞察细胞内资源合成

Rong-Rong Chang¹, Wei Yao¹, Jin-Luo Pang¹

¹School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.

|June 15, 2024

概括

将减少的湿酸和过氧化添加到anammox细菌 (AnAOB) 中,可以在寒冷条件下增加它们的活性. 这一氧化还原对增强了能源生产和微生物的丰富性,提高了废水处理效率.

科学领域:

环境生物技术环境生物技术
微生物的新陈代谢
污水处理污水处理污水处理

背景情况:

无氧氨氧化 (anammox) 是一种节能生物技术,用于除.
低温对通用废水处理中的anamox细菌 (AnAOB) 构成运行挑战.
提高AnAOB代谢活动对于更广泛的应用至关重要.

研究的目的:

研究AnAOB中细胞内ATP和NADH合成的增强.
在低温条件下 (15°C) 增加AnAOB活动,使用减少的湿酸 (HAred) 和H2O2氧化还原对.
提高主流城市废水处理的效率.

主要方法:

连续注射HAred (10 mg/g VSS) 和H2O2 (0.0067 μmol/g VSS) 进入一个主流的anammox反应堆.
在15°C的温度下运行,流入总 (TN) 含量为60 mg/L.
分析特定的anammox活动,ATP和NADH合成,微生物社区结构 (高通量测序) 和代谢途径 (代谢学).

主要成果:

这对HAred/H2O2对保持了10.72 ± 0.91 mg/L的废水TN.
与对照组相比,特定的anammox活性,ATP和NADH合成分别增加了1.34倍,2.33倍和6.50倍.
坎迪达斯·库内尼亚的相对丰度增加了5.14倍,代谢学显示了增强的氨基酸,核酸和脂代谢.

结论:

在低温下,HAred/H2O2氧化还原对有效地增强了AnAOB活动和能量合成.
这一策略改善了微生物的丰富性和对anammox过程至关重要的代谢途径.
这些发现支持使用氧化还原对来提高电子转移效率,并促进主流的anammox技术应用.

关键词:

候选人库内尼亚尼亚.H ((2) O ((2)) 的情况.胺酸是一种胺酸.细胞内资源是细胞内资源.主流的 anammox 已经成为主流.

更多相关视频

Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing

Author Spotlight: Unraveling the Mysteries of Terrestrial Anaerobic Microorganisms in Uncharted Environments by In Situ Culturing

Published on: January 12, 2024

Medium Preparation for the Cultivation of Microorganisms under Strictly Anaerobic/Anoxic Conditions

Medium Preparation for the Cultivation of Microorganisms under Strictly Anaerobic/Anoxic Conditions

Published on: August 15, 2019

相关概念视频

Redox Equilibria: Overview

Redox Equilibria: Overview

A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...

Ladder Diagrams: Redox Equilibria

Ladder Diagrams: Redox Equilibria

Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...

Redox Titration: Other Oxidizing and Reducing Agents

Redox Titration: Other Oxidizing and Reducing Agents

Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...