改造的生活墙花园的性能评估,用于处理化池污水
Thammarat Koottatep1, Tatchai Pussayanavin2, Chongrak Polprasert3
1Environmental Engineering and Management, Asian Institute of Technology, Khlong Luang, Pathum Thani, Thailand.
Environmental science and pollution research international
|August 2, 2024
概括
活墙花园系统有效地处理化池污水,显著减少营养和有机物质. 微生物分析揭示了关键细菌,如Nitrospirota帮助转化和Fusobacteriota表明氧气变化.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 废水处理工程 废水处理工程
背景情况:
- 污水池是常见的分散的废水处理系统.
- 化池的废水需要进行后处理,以满足排放标准,特别是营养物质的去除.
- 活墙 (LW) 系统提供了一个潜在的以自然为基础的解决方案,以提高污水池的废水质量.
研究的目的:
- 评估生活墙 (LW) 系统的处理性能,作为污水池污水的后处理.
- 分析LW单位内的微生物群落,以了解它们在污染物清除中的作用.
- 为了确定变化的液压保留时间 (HRT) 对LW系统效率的影响.
主要方法:
- 使用了一个实验室规模的LW系统,有三个单元 (LW1,LW2,LW3).
- 该系统以6小时,12小时和24小时的理论液压保留时间输送了化池废水.
- 对TCOD,SCOD,TSS,TVS,TKN和TP的清除效率进行了测量.
- 使用Illumina MiSeq系统测序器进行了微生物社区分析.
主要成果:
- 低压系统实现了显著的清除效率:TCOD (62±24%),SCOD (42±19%),TSS (72±21%),TVS (66±15%),TKN (80±15%),TP (58±21%). 由于LW系统的使用,LW系统可以实现更高的清除效率,例如TCOD (62±24%),SCOD (42±19%),TSS (72±21%),TVS (66±15%),TKN (80±15%) 和TP (58±21%).
- 对于转化至关重要的尼特罗斯皮罗塔存在于所有LW单元中.
- 在特定层中确定了fusobacteriota,这表明LW系统内氧气水平的变化.
结论:
- 活墙系统通过减少关键污染物,显示出提高污水池污水质量的巨大潜力.
- 已识别的微生物群落,特别是Nitrospirota,在LW系统中的营养去除过程中发挥着至关重要的作用.
- 根据微生物见解,进一步研究优化LW设计和运行,可以提高废水处理效率.
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