,和的相互剂量对厌氧消化微生物群产生影响
Kris Anthony Silveira1,2,3, Javier Ramiro-Garcia4, Cian Lawless5
1Microbial Ecology Laboratory, School of Biological and Chemical Sciences and Ryan Institute, University of Galway, University Road, Galway, H91 TK33, Ireland. kris.silveira13@gmail.com.
概括
像 (Mo), (W) 和 (Se) 这样的微量元素显著影响无氧消化 (AD) 性能和微生物组结构. 量身定制的金属补充可以通过影响微生物群落和代谢途径来优化沼气生产.
科学领域:
- 生物地质化学生物地质化学
- 微生物学 微生物学
- 环境工程 环境工程
背景情况:
- 金属对于无氧消化 (AD) 是至关重要的,但它们对微生物组动态的综合作用尚未完全理解.
- 调查微量元素 (TE) 共同发生对于优化AD过程至关重要.
研究的目的:
- 调查 (Mo), (W) 和 (Se) 联合暴露对甲原颗粒的影响.
- 分析细胞外聚合物物质 (EPS) 的变化,微生物的组成,功能和甲生成途径.
主要方法:
- 使用无氧批量反应堆与牺牲反应堆进行24天内的生物质分析.
- 采用了DNA:RNA联合提取,安普利康序列,金属度分析,SEM-EDX和EPS提取.
- 评估了Mo,W和Se单独或组合对AD表现的影响.
主要成果:
- 和增加了可溶铁 (Fe) 和增强了Fe/S的保留.
- W,Mo,W+Se和Se对甲产量产生了积极影响;W+Se和W增强了亚类甲生成.
- Se增加了EPS蛋白质和碳水化合物含量,而Mo和Se改变了微生物组成,丰富了核酸和维生素代谢.
结论:
- 联合剂量Fe,W,Mo和Se影响AD过程性能和微生物组结构.
- 量身定制的金属组合提供了一个优化生物气生产的策略.
- 结果为AD利益相关者提供了洞察力,通过金属补充来提高工艺效率.
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