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Jumana Alja'fari¹, Sybil Sharvelle¹, Amos Branch²

¹Department of Civil and Environmental Engineering, Colorado State University, 700 Meridian Avenue, Fort Collins, CO 80523, USA.

|October 29, 2024

概括

雨水采集和利用 (SCU) 项目面临微生物污染的挑战. 使用微生物源追踪 (MST) 标记器估计的雨水中的人类便污染,可以指导安全的水再利用的处理目标.

科学领域:

环境微生物学环境微生物学
水资源工程水资源工程
公共卫生公共卫生

背景情况:

雨水采集和利用 (SCU) 为市政供水提供了潜力,但受到微生物污染问题的阻碍.
雨水中的人类便污染可能来自老化的基础设施,无家可归的营地和下水道溢出.
评估污染水平对于选择适当的雨水处理策略至关重要.

研究的目的:

调查源自人类便的雨水中的微生物污染.
评估使用人类微生物源追踪 (MST) 标记物和潜在的人类传染病原体 (PHIP) 进行污染评估.
开发一种人类便污染模拟 (HFCA) 来告知雨水处理目标.

主要方法:

在雨水和废水中对人类MST标记物和PHIP进行了系统审查.
统计分析了MST和PHIP数据以估计HFCA.
比较了基于MST和基于PHIP的HFCA估计的可靠性.

主要成果:

基于人类MST的HFCAs在潮湿的天气中从10-7.0到10-1.5 (中位数=10-4.5),在干燥的天气中从10-12到10-2.6 (中位数=10-7.0).
在潮湿的天气中,基于PHIP的HFCAs从大约10-8到10-0.14不等.
由于PHIP数据集的局限性,基于人类MST的HFCA估计结果被发现更可靠.

结论:

基于人类MST的HFCAs提供了一种可靠的方法来估计雨水中的人类便污染.
建议使用基于人类MST的HFCAs来指导雨水处理过程的选择,以保护公共健康.
建议在雨水再利用应用中使用10^-1的保守HFCA来告知病原体日志减少目标.

关键词:

干燥的天气流动流动.人类便污染类似物人类微生物源追踪标记器潜在的人类传染性病原体.风暴水的风暴水是什么意思潮湿的天气流动流动.

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