相关实验视频
Updated: May 27, 2025

09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
12.7K
在水生系统中由潜在的财团进行氨的转化
Anne Bhambri1,2, Santosh Kumar Karn3, Arun Kumar4
1Department of Biotechnology, Shri Guru Ram Rai University, Patel Nagar, Dehradun, Uttarakhand, 248001, India.
Scientific reports
|February 19, 2025
概括
这项研究表明,细菌联盟有效地消除了水产养殖系统中高度的氨和酸盐. 联合氨氧化细菌 (AOB) 实现了几乎完全的去除,证明了它们在改善水质方面的效率.
科学领域:
- 环境微生物学 环境微生物学
- 水产养殖科学 水产养殖科学
- 生物修复是一种生物修复.
背景情况:
- 水产养殖系统面临的挑战是高氨,酸盐和酸盐水平,这对水生生物有毒.
- 有效的生物处理方法对于保持水质和水产养殖的可持续性至关重要.
研究的目的:
- 评估单个氨氧化细菌 (AOB) 隔离物及其联合体在去除高度氨,酸盐和酸盐方面的有效性.
- 评估这些细菌菌株在实验室和现场水产养殖环境中的表现.
主要方法:
- 使用了四种高效的氨氧化细菌分离物 (AOB AMS 1,AOB AMS 2,AOB AMS 5,AOB AMSS 1) 和它们的联盟.
- 在实验室规模和现场生物反应器水平进行了实验,使用不同的氨初始度 (30和60毫克/升).
- 使用殖民地形成单位 (CFU) 监测细菌生长,并在河水中量化氨和化物转化.
主要成果:
- 在实验室条件下,细菌联盟在60毫克/升的剂量下实现了99.97%±5.20的氨去除.
- 个别隔离物显示出高的去除率,其中AOB AMS 2和AOB AMS 5特别有效.
- 在现场研究表明100%±2%的氨去除与显著的细菌联盟增长超过10天.
结论:
- 在水生系统中,AOB AMS 1,AOB AMS 2,AOB AMS 5 和AOB AMSS 1 的细菌联盟对氨,酸盐和酸盐的去除非常有效.
- 这种微生物溶液有效地降低了水产养殖环境中的有毒水平.
- 该研究验证了这种细菌联盟在水产养殖中改善水质的应用.
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
Preparation of Amines: Alkylation of Ammonia and Amines
3.2K
Alkylation is one of the methods used to prepare amines. Direct alkylation of ammonia or a primary amine with an alkyl halide gives polyalkylated amines along with a quaternary ammonium salt through successive SN2 reactions. This process of making the quaternary salt through the direct alkylation method is called exhaustive alkylation.
Each alkylation step makes the nitrogen center more nucleophilic, which triggers successive alkylations until a quaternary ammonium salt is formed. Considering...
Each alkylation step makes the nitrogen center more nucleophilic, which triggers successive alkylations until a quaternary ammonium salt is formed. Considering...
3.2K
The Nitrogen Cycle
51.5K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
51.5K
Comparative Excretory Systems
19.0K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
19.0K
Preparation of 1° Amines: Gabriel Synthesis
3.4K
Direct alkylation is not a suitable method for synthesizing amines because it produces polyalkylated products. Gabriel synthesis is the most preferred method to exclusively make primary amines. The method uses phthalimide, which contains a protected form of nitrogen that participates in alkylation only once to predominantly give primary amines.
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
Strong bases like NaOH or KOH deprotonate the phthalimide to form the corresponding anion, which acts as a nucleophile. Further, the anion attacks an...
3.4K
Preparation of Amines: Reductive Amination of Aldehydes and Ketones
2.7K
Carbonyl compounds and primary amines undergo reductive amination first to produce imines, followed by secondary amines in the same reaction mixture, using selective reducing agents like sodium cyanoborohydride or sodium triacetoxyborohydride. Reductive amination produces different degrees of substitution of amines depending on the starting amine substrate.
2.7K

