相关实验视频

Updated: Jul 7, 2025

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

通过C4-HSL介导的定量检测调节了在低温下在活性污泥过程中去除的过程

Qianhan Ni¹, Ying Chen¹, Lanxin Lu¹

¹College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.

Environmental research

|December 21, 2023

概括

在低温下向活性污泥系统中添加N-基-同素乳 (C4-HSL) 显著提高了的去除. 这一策略促进了微生物的交流和新陈代谢,提高了整体废水处理效率.

科学领域:

环境微生物学环境微生物学
废水处理工程废水处理工程
生物技术是生物技术.

背景情况:

活性污泥工艺在低温下与化作斗争.
低温抑制了微生物活动,这对去除至关重要.
需要有效的策略来保持在寒冷条件下废水处理效率.

研究的目的:

为了研究外源性N-基-同素乳 (C4-HSL) 对10°C的活性污泥中去除的影响.
阐明C4-HSL影响微生物群落和代谢途径的机制.
评估C4-HSL作为解决低温废水处理问题的潜力.

主要方法:

在10°C下运行的实验室规模测序批量反应器 (SBR).
添加不同度的外源C4-HSL (N-丁烯-同素乳).
对去除效率,细胞外聚合物物 (EPS),微生物群体结构,基因表达和定数感应 (QS) 活动的分析.

主要成果:

C4-HSL (10和100μg/L) 提高了- (NH4+-N) 的去除26%,并降低了总 (TN) 到15 mg/L以下.
C4-HSL改变了EPS的组成,增加了类似酸/酸的物质,减少了类似蛋白质的物质.
外源C4-HSL增强了化/脱化细菌和基因的丰富性,促进了QS功能,并提高了三碳酸 (TCA) 循环基因的调节.

结论:

外源C4-HSL在低温下有效增强活性污泥系统中的去除.
C4-HSL通过促进微生物通信,能量代谢和代谢来改善治疗.
本研究提出了一种可行的策略,用于在寒冷条件下优化废水脱性能.

关键词:

活性污泥活动污泥低温低温低温的温度是什么移除的方法移除的方法检验人数的检测可以通过定数检测.信号分子信号分子三碳酸循环的三碳酸循环.

更多相关视频

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor

Published on: October 15, 2015

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Anti-virulent Disruption of Pathogenic Biofilms using Engineered Quorum-quenching Lactonases

Published on: January 1, 2016

相关概念视频

Bacterial Signaling

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...