探索柱式SBR中的营养去除机制,同时进行化和脱
Nadeem A Khan1, Simranjeet Singh2, Praveen C Ramamurthy2
1Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Saudi Arabia.
Journal of environmental management
|November 17, 2023
概括
一个柱式测序批量反应器 (SBR) 有效地去除营养物质,并实现高的同时化和脱化 (SND) 速率. 这种先进的废水处理方法增强了细胞外聚合物物质 (EPS) 以获得优质的去除.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 同时化和脱 (SND) 对于在废水处理中有效去除至关重要.
- 细胞外聚合物物质 (EPS) 在微生物营养物质的转化和去除中发挥着关键作用.
- 列式测序批量反应器 (SBR) 提供了增强生物营养物质去除的潜力.
研究的目的:
- 评估基于SBR的SND系统的影响和机制.
- 阐明EPS中的功能组在转化中的作用.
- 为了评估SBR工艺的营养和COD去除效率.
主要方法:
- 使用柱式测序批量反应堆 (SBR) 处理废水.
- 分析了细胞外聚合物质 (EPS) 的组成和特性.
- 采用单变量方差分析 (ANOVA) 和一个CatBoost机器学习模型.
- 研究了在不同的液压保留时间 (HRT) 上的营养和化学氧气需求 (COD) 清除效率.
主要成果:
- 该SBR工艺实现了69%的SND效率和66%的总去除.
- 通过SBR,EPS含量和气运输/转换/保留能力得到了增强.
- 营养 (88-98%) 和COD (93%) 的去除效率在6小时HRT内很高.
- 废水度和HRT显著影响了处理效率.
结论:
- 这种SBR细菌群体对于促进SND的传播至关重要.
- SBR工艺在营养物质的去除和EPS增强方面表现出卓越的性能.
- 完整的废水抛光可能需要处理后的物理化学过程.
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