无氧颗粒污泥的生态分布向高效的无氧反应堆
Wenda Chen1, Huiming Tang1, Dongdong Xu1
1Department of Environmental Engineering, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou, China.
Bioresource technology
|July 16, 2023
概括
生态无氧反应堆 (EAR) 通过促进污泥息地选择,从而导致更高的有机载荷率 (OLR),优于物理反应堆. 这种生态分布提高了基板的可用性和反应堆的效率.
科学领域:
- 环境工程 环境工程
- 微生物生态学 微生物生态学
- 生物反应器技术技术
背景情况:
- 无氧反应器经常表现出低于最佳的性能.
- 了解影响反应堆效率的因素对于优化至关重要.
研究的目的:
- 研究生态无氧反应堆 (EAR) 和物理无氧反应堆 (PAR) 之间的性能差异.
- 确定有助于提高无氧消化性能的关键因素.
主要方法:
- 开发一个生态无氧反应堆 (EAR) 具有垂直隔离器.
- 在受控条件下比较EAR性能与物理无氧反应堆 (PAR).
- 分析垂直污泥分布模式及其对有机载荷率 (OLR) 的影响.
主要成果:
- 与PAR (45 kg/m3·d) 相比,EAR实现了显著更高的OLR (>100 kg/m3·d)
- 在EAR中的生态分布,由息地选择驱动,促进基质可用性和OLR.
- 在PAR中的物理分布,受液压选择,降低基板可用性和OLR的影响.
结论:
- 通过息地选择促进的生态分布是高性能无氧消化的关键.
- 尽量减少液压选择可以提高反应堆的效率.
- 这些发现为设计高性能无氧反应堆提供了新的策略.
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