相关实验视频
Updated: May 12, 2026
09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
12.7K
在anammox工艺上解读6:2化多化乙烯硫酸盐 (替代-PFOS) 的解密行为:去除效率和微生物适应性
Jiaqi Zhang1, Ziyu Xu1, Xiangqi Deng1
1College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
Bioresource technology
|February 29, 2024
概括
作为 perfluorooctane 硫酸盐的替代品,F-53B 在无氧氧化 (anammox) 过程中影响了去除效率. 较低的F-53B度提高了anammox的性能和微生物群落结构.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- perfluorooctane sulfonate (PFOS) 是一种持久性环境污染物.
- F-53B是PFOS的潜在替代品,但其对环境的影响需要调查.
- 无氧氨氧化 (anammox) 是废水处理中去除的关键过程.
研究的目的:
- 为了研究F-53B对anammox过程的影响.
- 了解F-53B在anammox联盟中的降解和代谢机制.
- 评估在F-53B的存在下使用anammox用于工业废水处理的可行性.
主要方法:
- 在不同度的F-53B中研究去除效率 (NRE).
- 测量除率以评估F-53B的降解.
- 分析微生物社区结构,使用相对丰富的关键细菌,如Ca. 昆尼亚和丁尼特拉提也没有.
- 调查了上尉的角色. 在减轻氧化应激的过程中.
主要成果:
- 在0.5 mg·L−1 F-53B时,达到83.8%的最佳NRE,在5 mg·L−1.3时降至66.9%.
- 分别在0.5和5毫克L-1F-53B下观察到17.8%和9.3%的脱率,这表明降解.
- 这是因为. 随着F-53B的增加,Kuenenia的丰度下降,而Denitratisoma则以0.5 mg·L-1.1的剂量进行丰富.
- 这是因为. 库内尼亚证明了减少F-53B诱导的活性氧物种的能力.
结论:
- 在anammox过程中,F-53B表现出度依赖的效应.
- 亚纳莫克斯细菌可以部分降解F-53B,并适应其存在.
- 阿纳莫克斯工艺显示出处理污染了F-53B的工业废水的潜力.
更多相关视频
相关概念视频
01:15Metabolism of Chemolithotrophs
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation. However, because inorganic electron donors...
01:26Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
01:28Microbial Bioremediation of Pesticides
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
01:28Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...