有氧-无氧DHS反应堆用于加强城市废水处理中的脱化
Shehani Sharadha Maheepala1, Masashi Hatamoto2, Takahiro Watari2
1Department of Civil Engineering and Bioengineering, Nagaoka University of Technology, Nagaoka 940-2188, Japan.
The Science of the total environment
|November 2, 2024
概括
这项研究通过开发一种有氧-无氧下流悬浮海绵 (DHS) 反应器来增强废水处理. 新型反应堆设计提高了脱能力,显示了有效的市政废水处理的潜力.
科学领域:
- 环境工程 环境工程
- 微生物学 微生物学
背景情况:
- 无氧条件增强废水处理中的脱化.
- 下游悬浮海绵 (DHS) 反应堆用于废水处理.
研究的目的:
- 开发和评估一种有氧-无氧DHS反应器,以改善脱.
- 调查综合无氧区对废水处理效率的影响.
主要方法:
- 一个吸管被集成到传统的DHS反应堆中,以创建交替的有氧-无氧区域.
- 该反应堆在30°C下以3小时的液压保留时间 (HRT) 运行.
- 在低负载和标准阶段评估了废水处理性能,基于影响性可溶化学氧需求 (sCOD).
主要成果:
- 与对照组 (35.6%) 相比,有氧-无氧DHS在低负载阶段显示出更高的sCOD去除 (53.6%).
- 在标准阶段,有氧-无氧DHS实现了高脱率 (85%-100%),尽管总体去除率较低.
- 微生物分析显示,在厌氧区中,脱剂的丰富性更高,特别是Rhodocyclaceae.
结论:
- 有氧-无氧DHS反应器有效地提高了废水处理中的脱能力.
- 无氧区在DHS系统中的整合显示了优化城市废水处理过程的前景.
- 该研究强调了微生物社区结构在实现有效的去除方面的重要性.
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