微纳气泡辅助下的高级氧化工艺及其对裸子：O3/H2O2/UV多氧化剂体系的失活效果

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-07-17 DOI:10.1016/j.cej.2025.166123

Yiming Hao, Yanyu Zhang, Jizhe Wang, Hongpeng Zhang, Li Sun, Mingsheng Cui

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引用次数: 0

摘要

微纳米气泡（MNBs）表现出独特的物理化学性质，在水处理中具有很大的前景，但它们在增强高级氧化过程（AOPs）中的作用仍未得到充分研究。本研究开发了一种新型的多射流孔MNBs发生器。通过数值模拟研究了微通道内气泡的动力学特性，揭示了微通道在速度、压力和湍流共同作用下的破裂和演化机制。在臭氧（O3）、过氧化氢/紫外线（H2O2/UV）和O3/H2O2/UV三种AOPs中评估MNBs的增强效果。电子自旋共振（ESR）证实了羟基自由基（·OH）的生成增强。在测试的体系中，O3/H2O2/UV/MNBs表现出最高的总残余氧化剂（TRO）浓度和·OH产率，这归因于改善的传质和界面反应。此外，该系统在6 min内实现了裸子藤细胞的完全失活，同时保持了细胞膜的完整性。本研究为应用mnbs辅助AOPs控制藻华提供了机理见解和技术框架，支持高效节能水处理技术的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Micro-nanobubbles-assisted advanced oxidation processes and their inactivation effect on Gymnodinium catenatum: O3/H2O2/UV multi-oxidant system

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Micro-nanobubbles-assisted advanced oxidation processes and their inactivation effect on Gymnodinium catenatum: O3/H2O2/UV multi-oxidant system

Micro-nanobubbles (MNBs) exhibit unique physicochemical properties that hold great promise for water treatment, yet their role in enhancing advanced oxidation processes (AOPs) remains underexplored. In this study, a novel multi-jet orifice MNBs generator was developed. Bubble dynamics within microchannels were elucidated via numerical simulations, revealing their breakup and evolution mechanisms under the combined influence of velocity, pressure, and turbulence. The enhancement effects of MNBs were assessed across three AOPs: ozone (O₃), hydrogen peroxide/ultraviolet (H₂O₂/UV) and O₃/H₂O₂/UV. Electron spin resonance (ESR) confirmed the enhanced generation of hydroxyl radicals (·OH). Among the systems tested, O₃/H₂O₂/UV/MNBs exhibited the highest total residual oxidant (TRO) concentrations and ·OH yield, attributed to improved mass transfer and interfacial reactions. Additionally, this system achieved complete inactivation of Gymnodinium catenatum cells within 6 min while maintaining cell membrane integrity. This study provides mechanistic insights and a technical framework for applying MNBs-assisted AOPs in algal bloom control, supporting the development of efficient and energy-saving water treatment technologies.

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.