一种新型粉改性载体对测序批量反应堆性能,生物积累和微生物群体的影响
Zhiwei Li1, Quan Feng1, Mingyi Lu1
1Shandong Engineering Research Center for Biogas, Qingdao New Energy Shandong Laboratory, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, PR China; Shandong Energy Institute, Qingdao, 266101, PR China.
Journal of environmental management
|September 7, 2024
概括
一种新型的粉改性载体显著提高了有氧测序批量反应堆 (SBR) 的性能. 这种载体增加了生物质,改善了氨去除,并增加了微生物多样性,以改善废水处理.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 有氧测序批量反应器 (SBR) 对于废水处理至关重要.
- 载体材料影响生物膜的形成和反应堆的效率.
- 像聚乙烯 (PE) 这样的传统载体在支持强大的微生物群落方面存在局限性.
研究的目的:
- 在有氧SBR中评估新型粉修饰载体的性能.
- 为了比较用粉修改的载体与传统的PE载体.
- 调查对生物膜特征,微生物群落和污染物去除的影响.
主要方法:
- 有氧测序批量反应堆使用粉修改载体和传统PE载体运行.
- 测量了生物质积累和细胞外聚合物质 (EPS) 度.
- 评估了氨去除效率和体积化率.
- 使用高通量测序来分析微生物丰富性和多样性.
主要成果:
- 粉修饰的载体表现出明显粗的表面和多孔结构,促进了快速的生物膜形成.
- 粉载体上的生物质是PE载体的3.4倍.
- 与活性污泥相比,生物膜EPS的多糖含量更高.
- 带有粉载体的SBR实现了84.8%的氨去除,超过PE载体的73.1%的去除.
- 粉载体支持更大的微生物丰富性和多样性,其中Saccharimonadales和Nitrospira被确定为关键品种.
结论:
- 与传统的PE载体相比,用粉修改的载体在有氧SBR中表现出优越的性能.
- 其增强的生物膜支持和微生物社区结构导致废水处理效率提高,特别是在氨去除方面.
- 用粉改造的载体显示出在废水处理系统中大规模应用的巨大潜力.
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