在海绵床滴水过器中的无氧氨氧化:运行条件和主流污水处理
Luana Mattos de Oliveira Cruz1, Rosana Oliveira Menezes2, Samara Luiza Alves Geraldo1
1School of Civil Engineering, Architecture and Urban Design (FECFAU) at University of Campinas (UNICAMP), Rua Saturnino de Brito, 224. Barão Geraldo. Campinas/SP, Brasil.
Bioresource technology
|October 12, 2025
概括
在热带条件下,海绵床水过器有效地从家用废水中去除. 这种具有成本效益的方法通过促进生物膜和最大限度地减少再循环需求,简化了主流治疗.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理技术 废水处理技术
背景情况:
- 主流废水处理面临着低度,温度波动和微生物对anammox工艺的竞争等挑战.
- 亚纳莫克斯 (无氧氨氧化) 过程对于去除至关重要,但对操作条件敏感.
研究的目的:
- 评估海绵床水过器 (SBTF) 的性能,用于在上游无氧污泥毯 (UASB) 反应堆后对家庭废水进行后处理.
- 评估SBTF在热带条件下的操作简单性和成本效益,以及不同的负载率 (NLR).
主要方法:
- 一个试点规模的SBTF经营了425天,在热带条件下处理真正的家庭废水.
- 该研究监测了化学氧气需求 (COD),氨 (NH4+-N) 和总去除效率.
- 进行了微生物社区分析,以了解关键微生物的空间分层.
主要成果:
- 该SBTF实现了42 mgO2·L-1 COD和11 mgNH4+-N·L-1的平均去除,总去除范围为25-36%.
- 聚氨海绵促进了强大的生物膜形成,生物质保留和稳定的无氧区,即使没有废水循环.
- 负载率被确定为影响去除效率的主要因素.
结论:
- 海绵床滴水过器提供了一种可行且具有成本效益的解决方案,用于在主流废水处理中去除,特别是作为后处理步骤.
- SBTF的设计促进了操作的简单性和生物质的保留,允许在特定条件下尽量减少循环.
- 该研究强调了SBTF在现实世界废水处理场景中提高去除效率的潜力.
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