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微生物相互作用阐明了改变化途径的液压保留时间的机制,仅在一个基于的电化学生物反应器 (PEBR) 中

Yuhu Nie¹, Sicheng Yuan², Shiyang Zhang¹

¹School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China.

Journal of environmental management

|February 9, 2025

概括

在生物反应器中,以矿为基础的自无化 (PAD) 通过优化液压保留时间 (HRT) 将去除率提高到92.53%. 较长时间的HRT增强了PAD,减少了异质无化,并转移了微生物群落,以实现高效的废水处理.

科学领域:

环境科学环境科学
环境工程环境工程
微生物学微生物学

背景情况:

基于pyrite的自脱 (PAD) 是一种有前途的低碳废水处理方法,用于去除.
有限的矿溶解和缓慢的脱率阻碍了PAD的实际应用.
基于pyrite的电化学生物反应器 (PEBR) 为提高PAD效率提供了一个潜在的解决方案.

研究的目的:

研究液压保留时间 (HRT) 对PEBR中脱效率的微生物影响.
了解HRT对PEBR系统中硫化物和铁氧化过程的影响.
优化HRT以改善排放和减少废水处理中的副产品形成.

主要方法:

构建一个以矿为基础的电化学生物反应器 (PEBR).
系统地改变液压保留时间 (HRT),以评估其对处理性能的影响.
分析微生物群落结构,功能性基因表达 (例如,korA/B,dsrA/B,aprA/B) 和物种度.

主要成果:

在12小时的HRT中达到92.53%±0.96%的最佳酸盐去除效率 (NRE).
延长的HRT促进了PAD,增加了与PAD相关的属 (Thiobacillus,Ferritrophicum) 的丰富性,并将异质化降低到1%.
在Desulfobacterota (减少硫酸盐的细菌) 的主导地位和HRT与参与铁氧化 (korA/B) 和分散硫酸盐减少 (dsrA/B, aprA/B) 的功能基因的正相关性.

结论:

液压保留时间 (HRT) 是优化PEBR去除性能的一个关键因素.
延长HRT通过促进PAD和影响微生物社区动态来增强自身缩性脱.
该研究提供了优化HRT的见解,以利用PEBR技术高效处理废水.

关键词:

相关性分析是一项相关性分析.电化学电化学电化学液压保留时间 (HRT)基于矿的自无化 (PAD)减少硫酸盐的减少

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