充满的活性碳微管作为有氧颗粒的结构框架:交联网络克服了原生框架的局限性
Jie Xu1, Yuan Gao1, Zihan Sheng1
1School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266580, PR China.
Water research
|August 20, 2025
概括
新型含活性碳微管 (ACMTs-Ca) 加快有氧颗粒污泥 (AGS) 的形成并提高稳定性. 这项技术改善了污染物的去除,并为坚固的AGS种植提供了可持续的策略.
科学领域:
- 环境工程
- 生物技术
- 材料科学
背景情况:
- 有氧颗粒污泥 (AGS) 技术面临着与细丝细菌和细胞外聚合物 (EPS) 相关的缓慢颗粒和不稳定的挑战.
- 现有的方法难以为有效的微生物聚合和污染物清除提供稳定的框架.
研究的目的:
- 开发和评估含活性碳微管 (ACMT-Ca) 作为增强AGS形成和稳定的新框架.
- 研究ACMT-Ca对颗粒动力学,结构完整性,微生物群落和污染物去除效率的影响.
主要方法:
- 对ACMT-Ca的合成和表征.
- 与对照组相比,使用ACMT-Ca作为框架的AGS培养.
- 颗粒特性分析,包括尺寸分布,沉速度 (SVI) 和结构强度.
- 污染物清除效率的评估 (COD,TN,TP)
- 用于研究微生物群落结构和功能基因丰度的元基因组分析.
主要成果:
- ACMTs-Ca显著降低了微生物附着的界面能量屏障.
- 用ACMTs- Ca获得成熟的AGS粒度需要30天,而对照组需要140天.
- 采用ACMT-Ca的AGS框架显示结构强度增加了80%,这归因于-酸盐-多糖网络.
- AGS-ACMTs-Ca系统实现了高清除率:96%的COD,80%的TN和99.48%的TP.
- 基因组分析显示微生物群落和基因表达的转变有利于稳定EPS.
结论:
- ACMT-Ca作为快速稳定的AGS形成的有效框架.
- -酸盐协调网络增强了颗粒的结构完整性,减少了对细菌的依赖.
- 通过ACMTs-Ca策略,促进微生物位的调节,并提高整体废水处理性能.
- 这种方法提供了一种可持续的解决方案,用于培养强大的AGS,以提高污染物清除能力.
相关概念视频
Cell Inclusions
196
Prokaryotic cells possess a variety of inclusions that play crucial roles in nutrient storage, metabolic processes, and environmental adaptation. These structures enable bacteria to thrive under fluctuating environmental conditions by storing essential resources and optimizing their metabolic efficiency.Carbon Storage: Poly-β-Hydroxybutyric Acid and Glycogen GranulesBacteria frequently store excess carbon in specialized granules. Poly-β-hydroxybutyric acid (PHB) granules are lipid...
196
Microtubules
7.8K
Microtubules are the thickest cytoskeletal filaments with a diameter of 25 nm. In prokaryotic organisms, microtubules are commonly found in locomotory appendages like cilia and flagella. In eukaryotic cells, microtubules form specialized extensions for moving fluid over the surface, like those found in cells lining the intestine.
Microtubules have two structurally similar globular protein subunits: α and β tubulins. In the cytosol, the α and β tubulins form a heterodimer....
Microtubules have two structurally similar globular protein subunits: α and β tubulins. In the cytosol, the α and β tubulins form a heterodimer....
7.8K
Assembly of Cytoskeletal Filaments
21.4K
Cytoskeletal filaments are polymeric forms of smaller protein subunits. However, individual cytoskeletal filaments may easily disassemble or associate with other similar filaments to form rigid structures. Microfilaments, made of actin monomers, rely on actin-binding proteins to form bundles and create networks of individual actin filaments. Microtubules rely on microtubule-associated proteins (MAPs) to form sturdy cylindrical structures. However, the proteins involved in forming complex...
21.4K
Carbon Skeletons
110.2K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
110.2K
Assembly of Complex Microtubule Structures
1.9K
Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
1.9K
The Supercomplexes in the Crista Membrane
2.6K
The mitochondrial cristae membrane is the primary site for the oxidative phosphorylation (OXPHOS) process of energy conversion mediated through respiratory complexes I to V. These complexes have been widely studied for decades, and it has been proven that they form supramolecular structures called respiratory supercomplexes (SC). These higher-order complexes may be crucial in maintaining the biochemical structure and improving the physiological activity of the individual complexes while...
2.6K


