结合的UASB-GDM系统与电纳米纤维膜用于分散的废水处理
Mustafa N Taher1, Sama A Al-Mutwalli1, Isaac Owusu-Agyeman2
1Department of Environmental Engineering, Istanbul Technical University, Istanbul, Turkey.
Water research
|February 20, 2026
概括
这项研究展示了一个合的上游无氧污泥毯 (UASB) 反应器和重力驱动膜 (GDM) 系统,用于有效的分散废水处理. 该创新系统实现了超过99%的COD去除和稳定的膜流量,证明了其可持续水资源管理的潜力.
科学领域:
- 环境工程 环境工程
- 水处理技术水处理技术
- 厌氧消化 厌氧消化
- 膜过器 膜过器 膜过器
背景情况:
- 对于缺乏集中基础设施的地区,分散的废水处理是至关重要的.
- 上游无氧污泥毯 (UASB) 反应器和重力驱动膜 (GDM) 系统为低能耗废水处理提供了潜力.
- 电纳米纤维膜 (ESN) 是用于基于膜的净化水的新兴材料.
研究的目的:
- 评估UASB-GDM系统的性能,使用电纳米纤维膜 (ESN) 进行分散的废水处理.
- 评估生物膜介导流量稳定和有机/营养物去除效率.
- 调查不同液压保留时间 (HRT) 和ESN类型对系统性能的影响.
主要方法:
- 在37°C的完全无氧条件下运行合的UASB-GDM系统.
- 测试两种ESN类型:裸体聚合物 (B-ESN) 和纳米粘土复合材料 (C-ESN).
- 在三个HRT (24,16和8小时) 评估,有机负载率恒定.
- 分析化学氧气需求 (COD),总 (TN) 和总 (TP) 的去除.
- 使用X射线衍射和16S rRNA测序进行流量分析和生物膜表征.
主要成果:
- 高有机物去除率 (>99%的COD在24小时HRT),在更短的HRT时略有下降.
- C-ESN显示出优异的营养物质去除 (高达78%的TN,24小时HRT时74%的TP),归因于生物质分割和矿物沉积.
- 稳定的膜流量在2.0-3.8 L·m−2·h−1之间实现,没有反冲洗,由于生物膜自我调节和污染物的生物降解.
- 在生物膜中Methanobacteriaceae和Methanosaetaceae的主导地位促进了有机降解和稳定的流量.
结论:
- 结合ESN的UASB-GDM系统是一种低能耗,自给自足的解决方案,用于分散的废水处理.
- 生物膜的发展在维持稳定的膜流量和促进营养物质的去除方面发挥着至关重要的作用.
- 该系统对非饮用水的再利用和与资源回收技术的整合充满希望.
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