Jones Christopher H, Wylie Varsha, Ford Hannah, Fawell John, Holmer Melanie, Bell Katherine
Brown and Caldwell, 701 Pike St # 1300, Seattle, WA 98101, United States.
Southern Water Services Limited, Lewes Road, Falmer, Brighton BN1 9PY, United Kingdom.
J Appl Microbiol. 2023 Mar 1;134(3). doi: 10.1093/jambio/lxad029.
The growing need to access recycled water as a source for drinking water supply necessitates management of perceived risks. This study aimed to use quantitative microbial risk analysis (QMRA) to evaluate microbiological risks of indirect water recycling.
Scenario analyses of risk probabilities of pathogen infection were conducted to investigate four key quantitative microbial risk assessment model assumptions: treatment process failure, drinking water consumption events per day, inclusion or exclusion of an engineered storage buffer, and treatment process redundancy. Results demonstrated that the proposed water recycling scheme could meet WHO pathogen risk guidelines of ∼10-3 annual risk of infection under 18 simulated scenarios.
将再生水用作饮用水供应源的需求日益增长，因此有必要对感知到的风险进行管理。本研究旨在使用定量微生物风险分析（QMRA）来评估间接水回收的微生物风险。
对病原体感染的风险概率进行情景分析，以研究四个关键的定量微生物风险评估模型假设：处理过程故障、每日饮用水消耗事件、是否包含工程存储缓冲以及处理过程冗余。结果表明，在18种模拟情景下，所提出的水回收方案能够满足世界卫生组织（WHO）关于每年感染风险约为10⁻³的病原体风险指南。
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