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Updated: Jun 11, 2025

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体积度因子对饮用水生产中低压反透膜病毒去除的影响:在不同尺度上的研究
Hugo Taligrot1, Sébastien Wurtzer2, Mathias Monnot1
1Aix Marseille Univ., CNRS, Centrale Med., M2P2 UMR 7340, Equipe Procédés Membranaires (EPM), Europôle de l'Arbois, BP80, Pavillon Laennec, Hall C, 13545, Aix en Provence Cedex, France.
Water research
|October 6, 2024
概括
低压逆透 (LPRO) 显示出高病毒去除率,但扩大规模的系统中的微漏洞可能会让病毒穿过膜. 对O环完整性的进一步调查对于饮用水中完全去除病原体至关重要.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 膜过器 膜过器 膜过器
背景情况:
- 反透 (RO) 膜对于去除肠道病毒等纳米病原体至关重要.
- 之前的研究报告了低压RO (LPRO) 的高病毒去除率 (超过5log),超过超过.
- 然而,在先前的研究中使用的高病毒度可能会导致聚合,影响保留的准确性.
研究的目的:
- 使用LPRO. 评估使用LPRO同时消除腺病毒41,Coxsackievirus-B5和菌体MS2.
- 评估LPRO在不同尺度 (实验室和半工业) 的性能,并调查扩展因素的影响.
- 为了确定体积度因子和潜在的微泄漏对病毒保留的影响.
主要方法:
- 使用两个试点工厂 (实验室和半工业) 进行饮用水生产的实验.
- 缩的透物用于检测较低料度的病毒 (10^6病毒L^-1).
- 评估了膜数量,O环和体积度因子对病毒去除的影响.
主要成果:
- 在两种尺度和病毒类型中实现了平均6日志 (高达7日志) 的病毒减少.
- 在半工业规模上观察到,随着体积度因子的增加,保持率有所改善.
- 从两种尺度的透物中检测到病毒,表明保留不完整,在半工业尺度中恢复更高.
结论:
- LPRO显示显著的病毒减少,但没有实现完全消除.
- 半工业规模的复杂性增加 (更多的膜和O环) 与透物中的病毒恢复率更高相关.
- 通过O环的微泄漏是病毒传递的潜在途径,危及LPRO在更大规模的有效性.
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