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面向雨水再利用风险管理计划:QMRA的方法和采集区规模评估

Bartosz Szelag¹, Lucia De Simoni², Adam Kiczko³

¹Department of Science and Engineering of Materials, Environment and Urban Planning - SIMAU, Polytechnic University of Marche, via Brecce Bianche 12, 60131 Ancona, Italy; Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, Kielce 25-314, Poland.

The Science of the total environment

|January 21, 2025

概括

雨水的再利用可以满足水需求,减少污染. 定量微生物风险评估 (QMRA) 显示,基于自然的解决方案和消毒有效降低了安全回收水的坎皮洛巴克特风险.

科学领域:

环境工程环境工程
管理水资源管理水资源
微生物风险评估

背景情况:

雨水再利用为缺水地区和污染控制提供了可持续的解决方案.
风险管理计划对于了解和减轻与再利用水有关的公共卫生风险至关重要.
定量微生物风险评估 (QMRA) 为评估再利用水中的病原体风险提供了一个框架.

研究的目的:

利用模拟的下水道溢出数据,开发一种用于雨水再利用的创新QMRA方法.
评估与不同雨水再利用场景 (灌,所冲洗) 相关的微生物风险.
评估基于自然的解决方案 (NBS) 和消毒在减少微生物风险方面的有效性.

主要方法:

使用SWMM软件模拟了210场降雨事件,用于下水道网络建模和溢出识别.
病原体度 (大肠杆菌,坎比洛巴克) 与理论分布曲线相匹配.
使用蒙特卡洛模拟执行QMRA并链接溢出以重复使用暴露事件.
模拟的NBS和消毒 (紫外线,酸) 处理对微生物日志去除的疗效.

主要成果:

QMRA表示,NBS与酸消毒 (2.5-5 mg/L) 结合,可显著降低坎比洛巴克特菌感染风险,使大多数溢出通道的感染率降至可接受水平.
该方法成功地确定了基于欧盟指令影响游泳水质量的关键溢出.
模拟处理证明了在市政灌,花园灌和所冲洗场景中安全的雨水再利用的潜力.

结论:

雨水再利用是水资源管理的可行策略,当与强大的风险评估和处理相结合时.
基于自然的解决方案和消毒是有效的,使处理后的雨水安全用于各种重复使用应用.
开发的QMRA方法提供了一种有价值的工具,用于管理雨水再利用项目的风险.

关键词:

综合下水道溢出 - 公共公共事业组织这是QMRA的QMRA.风险分析风险分析这就是SWMM.风暴水的风暴水是什么意思

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