在混合无氧培养中酸盐和三乙烯生物还原之间的相互作用
Dong-Mei Yang1, Fen-Li Min2, Ying Li1
1College of Resource and Environmental Science, Hubei University, Wuhan, China.
Frontiers in microbiology
|January 30, 2025
概括
这项研究表明,酸盐和三乙烯 (TCE) 可以同时进行生物修复. 酸盐可以稳定pH值,帮助TCE分解,即使在高度,提供新的生物修复策略.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 环境化学环境化学
背景情况:
- 地下水被三乙烯 (TCE) 和酸盐污染是常见的.
- TCE生物修复通常会导致酸化,而酸盐生物修复会导致化.
- 在生物修复过程中TCE和酸盐之间的相互作用及其对pH值的影响还不清楚.
研究的目的:
- 研究生物还原过程中酸盐和TCE之间的相互作用.
- 了解pH值变化如何影响酸盐降解和TCE降解脱.
- 探索TCE和酸盐的同时生物修复的潜力.
主要方法:
- 生物还原实验是在用合成矿物盐介质和微生物联盟的血清瓶中进行的.
- 对TCE和酸盐度进行了变化,以评估它们对对方减少的影响.
- 使用16S rRNA基因测序进行了微生物社区分析.
主要成果:
- 高达0.3毫米的TCE度刺激了酸盐的减少.
- 酸盐主要抑制了TCE到二乙烯 (DCE) 的减少,但增强了乙烯化物 (VC) 到乙烯的减少.
- 酸盐诱导的自我化稳定了pH,促进了VC的减少.
- 无化细菌的数量随着酸盐度的增加而增加,而发酵细菌的数量则减少.
- 在特定条件下,dehalokoccoides对高酸盐度表现出耐受性.
结论:
- 同时生物修复TCE和酸盐是可行的,即使在高度.
- 微生物联盟的自我调节pH控制对于有效的共同污染物生物修复至关重要.
- 调查结果为开发共同污染地点改进的生物修复策略提供了洞察力.
更多相关视频
08:05Measurement of the Potential Rates of Dissimilatory Nitrate Reduction to Ammonium Based on 14NH4+/15NH4+ Analyses via Sequential Conversion to N2O
Published on: October 7, 2020
6.1K
11:31Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
Published on: July 13, 2012
33.7K
相关概念视频
Overview of Nitrogen Metabolism
7.8K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.8K
Phase I Reactions: Reductive Reactions
173
Phase I biotransformation reductive reactions are chemical processes that modify drugs by introducing or revealing polar functional groups via reduction. Enzymes called reductases catalyze these reactions, playing a pivotal role in drug metabolism by transforming lipophilic drugs into more polar, water-soluble metabolites for easy excretion. An essential type of reductive reaction is the carbonyl group reduction, where aldehydes and ketones are reduced to alcohols. An example is the...
173
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
