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在Mini和Midi尺度中复制饮用水生产的慢砂过的一致性和挑战

Xi Bai¹, Mandana Samari-Kermani², Emma K Smit¹

¹Microbial Systems Ecology, Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Science Park 904, 1098XH, Amsterdam, The Netherlands.

|September 24, 2025

概括

慢砂过 (SSF) 的成熟度很难确定. 这项研究发现Schmutzdecke的生物化学特性,而不是年龄,更好地预测水处理过器中的细菌去除性能.

科学领域:

环境工程环境工程
水处理技术水处理技术
微生物学微生物学

背景情况:

缓慢的沙过 (SSF) 对于安全的饮用水生产至关重要.
过器的成熟度,特别是施穆茨德克的发展,是关键的,但不太了解.
在成熟过程中施穆兹德克特质,微生物变化和细菌去除之间的联系尚不清楚.

研究的目的:

研究SSF成熟过程中的Schmutzdecke发育和细菌去除.
通过不同沙子大小,注射剂添加和实验室尺度 (Mini/Midi) 来比较这些过程.
为了将Schmutzdecke的生物化学和微生物特征与细菌去除效率相关联.

主要方法:

使用Mini和MidiSSF系统进行了一年的实验室研究.
监测的施穆茨德克生物化学指标 (碳水化合物,蛋白质,生物质) 和微生物群落 (总数/活性).
评估了细菌去除率,并将其与操作参数和施穆兹德克特征相关联.

主要成果:

运营参数在各个尺度上同样影响了Schmutzdecke的开发.
微生物群落的组成发生了转变,但最初在尺度之间缺乏一致性.
细菌去除在第一年保持低 (<0.7 log10),无论施穆兹德克的发展.

结论:

过器年龄是SSF成熟度和性能的一个不可靠的指标.
施穆兹德克生物化学特征显示出作为过效率的可靠指标的希望.
结果为改善SSF设计,监测和实验室到实验室的全面翻译提供了洞察力.

关键词:

生物片人物生物片人物过器尺度尺寸尺寸过器尺度尺寸微生物社区的微生物社区.模拟大肠杆菌的突破性发展施穆兹德克的地板是什么意思缓慢的沙子过成熟的成熟.

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