相关实验视频
Updated: Jun 26, 2025

09:50
Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
12.7K
在电气发酵系统中,通过牺牲铁阳极从污泥发酵液中有效地回收酸盐和
Haifeng Qiang1, Zhihong Liu2, Xiaoyun Yin1
1College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
Journal of environmental management
|May 11, 2024
概括
这项研究增强了使用牺牲铁阳极的电发酵来从废弃活性污泥中提取和维亚尼特的回收. 它在酸盐去除和短链脂肪酸利用方面实现了高效率,用于资源回收.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 电气发酵 (EF) 在废弃活性污泥 (WAS) 中进行和回收的研究.
- 目前的方法在产量和回收效率方面存在局限性.
- 由于效率低,EF进一步用于WAS的资源回收受到阻碍.
研究的目的:
- 提出一种有效的策略,利用EF.从模拟的污泥发酵液中同时回收和维亚尼特.
- 为了优化条件,最大限度地提高的生产和酸盐的去除.
- 在这个过程中调查微生物社区的动态和相互作用.
主要方法:
- 使用电气发酵 (EF) 与一个牺牲铁阳极.
- 模拟的污泥发酵液被用作基板.
- 优化的参数包括pH值和发酵时间.
- 分析了微生物联盟和环境变量.
主要成果:
- 在5天后,在pH8下达到45.2mmol/g的最佳生产率和77.6%的短链脂肪酸 (SCFA) 利用效率.
- 在2天内达到90.8%的酸盐去除效率.
- 获得高结晶度和维维亚尼特的重量百分比为84.8%.
- 观察到功能性微生物的显著丰富,包括无氧发酵细菌,电化学活性细菌,homo-acetogens和减少铁的细菌.
结论:
- 建议使用牺牲性铁阳极的EF策略提供了一种有效的方法,可以同时从污泥中回收和维亚尼特.
- 该研究提供了对微生物社区结构和功能的见解,这对于优化资源回收过程至关重要.
- 这项工作为WAS的实际能源和资源回收奠定了理论基础.
相关概念视频
Electrodeposition
626
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
626
Corrosion
24.0K
The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
24.0K

