Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China E-mail:
Beijing Waterworks Group, Beijing 100031, China.
J Water Health. 2022 Nov;20(11):1611-1628. doi: 10.2166/wh.2022.062.
Disinfection by-products (DBPs) generated during the disinfection of drinking water have become an urgent problem. So, tea polyphenol, a natural green disinfectant, has attracted widespread attention in recent years. This review summarizes the antibacterial mechanism of tea polyphenols and the recent findings on tea polyphenols as disinfectants for drinking water. These studies show that tea polyphenol is an antibacterial agent that works through different mechanisms and can be used as a supplementary disinfectant because of its higher lasting effect and economical cost. The dosage of tea polyphenols as a disinfectant of ultrafiltration effluent is the lowest among all the tea polyphenols disinfection methods, which can ensure the microbial safety of drinking water. This application of tea polyphenols is deemed a practical solution to solving the issue of disinfecting drinking water and reducing DBPs. However, it is necessary to further explore the influence of factors such as pipeline materials on the disinfection process and efficacy to expand the application scope of tea polyphenols. The large-scale application of tea polyphenols still needs to be fine-tuned but with new developments in tea polyphenol purification technology and the long-term need for drinking water that is safe for human consumption, tea polyphenols have good prospects for further development.
饮用水消毒过程中产生的消毒副产物（DBPs）已成为一个紧迫的问题。因此，近年来，作为一种天然绿色消毒剂的茶多酚受到了广泛关注。本综述总结了茶多酚的抗菌机制以及茶多酚作为饮用水消毒剂的最新研究发现。这些研究表明，茶多酚是一种通过不同机制起作用的抗菌剂，由于其持续效果更高且经济成本更低，可作为补充消毒剂使用。在所有茶多酚消毒方法中，作为超滤出水消毒剂的茶多酚用量最低，可确保饮用水的微生物安全性。将茶多酚应用于饮用水消毒可有效解决消毒副产物问题。然而，仍有必要进一步探讨管道材料等因素对消毒过程和效果的影响，以扩大茶多酚的应用范围。虽然茶多酚的大规模应用仍需进一步调整，但随着茶多酚纯化技术的新发展以及人们对安全饮用水的长期需求，茶多酚具有广阔的发展前景。
