高固体消化 - 完全和插头流反应堆系统的比较
Ebba Perman1, Anna Karlsson2, Maria Westerholm1
1Department of Molecular Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden; Biogas Solutions Research Center, Linköping, Sweden.
Waste management (New York, N.Y.)
|September 1, 2024
概括
使用插头流反应器 (PFRs) 的高固体消化 (HSD) 与连续水箱反应器 (CSTRs) 相比,显示出更好的甲生产和营养回收. 然而,这两种反应器类型都实现了有机废物的稳定消化.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 废物管理 废物管理
背景情况:
- 高固体消化 (HSD) 为处理有机废物和生产生物气提供了一种可持续的方法.
- HSD使用的稀释率低于传统的湿消化,使其资源效率高.
- 这项研究调查了反应堆类型作为影响HSD性能的关键因素.
研究的目的:
- 为了比较插头流反应堆 (PFR) 和持续式反应堆 (CSTR) 在高固体消化中的性能.
- 评估反应堆类型对生物气体生产,营养回收和微生物社区结构的影响.
- 评估HSD在热友条件下的稳定性和效率.
主要方法:
- 在热友环境 (52°C) 中使用家庭,花园和农业废物的混合物进行HSD.
- 插头流反应堆 (PFR) 和连续式反应堆 (CSTR) 的有效性进行了比较.
- 使用16S rRNA基因测序进行了微生物社区分析.
主要成果:
- 与CSTR相比,PFR显示出更高的特定甲产量和矿化.
- 挥发性固体的减少在PFR和CSTR之间是可比的.
- 在细菌和古生物群落中观察到显著的差异,与速度相关 (1rpm在PFRs与70-150rpm在CSTRs).
结论:
- 无论是PFR还是CSTR,都可以实现稳定的高固体消化,这表明工艺灵活性.
- 在甲产量和营养回收方面,PFRs为HSD提供了轻微的优势.
- 反应堆的设计显著影响了参与高固体消化的微生物联盟.
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