Xuetong Yang, Tao Zhang, Ze Liu, Rui Zhang, Changtao Chen, Zhengyao Li, Kristof Demeestere, Stijn W.H. Van Hulle
{"title":"强化臭氧气/液传质和臭氧化效率:综述","authors":"Xuetong Yang, Tao Zhang, Ze Liu, Rui Zhang, Changtao Chen, Zhengyao Li, Kristof Demeestere, Stijn W.H. Van Hulle","doi":"10.1016/j.watres.2025.124719","DOIUrl":null,"url":null,"abstract":"Ozone (O<sub>3</sub>) is effective for degrading persistent organic pollutants in wastewater but its efficiency is limited by poor O<sub>3</sub> gas/liquid mass transfer (<em>k</em><sub>L</sub><em>a</em>) and low O<sub>3</sub> utilization efficiency (typically 30%-64% in bubble columns). This review critically evaluates strategies to intensify O<sub>3</sub> mass transfer and enhance pollutant degradation. The <em>k</em><sub>L</sub><em>a</em> and energy consumption in different commonly used ozone contactors was compared, highlighting the importance of developing enhancement methods. Based on this, four types of techniques (i.e. applying physical fields, implementing membrane technology, utilizing micro/nano bubbles, and adding additives) were evaluated using <em>k</em><sub>L</sub><em>a</em> enhancement factor, pollutant degradation efficiency, and scalability as criteria. Physical methods (including ultrasound, electric field, and high gravity) enhanced <em>k</em><sub>L</sub><em>a</em> by 1.3–3 times but face scalability challenges due to high energy demands. Micro/nano-bubble producing systems coupled with catalysts such as activated carbon or chemical additives achieved <em>k</em><sub>L</sub><em>a</em> enhancements 3-4 times, increasing degradation of refractory pollutants by over 60% removal. However, the microbubble generation also demands additional energy and chemical additives may cause secondary pollution. Natural mineral packings provide a balanced solution, enhancing <em>k</em><sub>L</sub><em>a</em> by 2.5–3 times and recalcitrant pollutant removal by 25–30% at low energy consumption without secondary separation issues. For scalability, membrane contactors and catalytic microbubble have been applied at large-scale wastewater treatment while the stability of membrane and catalysts needs to be further improved. Overall, this study identifies favorable strategy for O<sub>3</sub> gas/liquid mass transfer and pollutant removal for sustainable water treatment.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"102 1","pages":""},"PeriodicalIF":12.4000,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Intensification of ozone gas/liquid mass transfer and ozonation efficiency: a critical review\",\"authors\":\"Xuetong Yang, Tao Zhang, Ze Liu, Rui Zhang, Changtao Chen, Zhengyao Li, Kristof Demeestere, Stijn W.H. Van Hulle\",\"doi\":\"10.1016/j.watres.2025.124719\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ozone (O<sub>3</sub>) is effective for degrading persistent organic pollutants in wastewater but its efficiency is limited by poor O<sub>3</sub> gas/liquid mass transfer (<em>k</em><sub>L</sub><em>a</em>) and low O<sub>3</sub> utilization efficiency (typically 30%-64% in bubble columns). This review critically evaluates strategies to intensify O<sub>3</sub> mass transfer and enhance pollutant degradation. The <em>k</em><sub>L</sub><em>a</em> and energy consumption in different commonly used ozone contactors was compared, highlighting the importance of developing enhancement methods. Based on this, four types of techniques (i.e. applying physical fields, implementing membrane technology, utilizing micro/nano bubbles, and adding additives) were evaluated using <em>k</em><sub>L</sub><em>a</em> enhancement factor, pollutant degradation efficiency, and scalability as criteria. Physical methods (including ultrasound, electric field, and high gravity) enhanced <em>k</em><sub>L</sub><em>a</em> by 1.3–3 times but face scalability challenges due to high energy demands. Micro/nano-bubble producing systems coupled with catalysts such as activated carbon or chemical additives achieved <em>k</em><sub>L</sub><em>a</em> enhancements 3-4 times, increasing degradation of refractory pollutants by over 60% removal. However, the microbubble generation also demands additional energy and chemical additives may cause secondary pollution. Natural mineral packings provide a balanced solution, enhancing <em>k</em><sub>L</sub><em>a</em> by 2.5–3 times and recalcitrant pollutant removal by 25–30% at low energy consumption without secondary separation issues. For scalability, membrane contactors and catalytic microbubble have been applied at large-scale wastewater treatment while the stability of membrane and catalysts needs to be further improved. Overall, this study identifies favorable strategy for O<sub>3</sub> gas/liquid mass transfer and pollutant removal for sustainable water treatment.\",\"PeriodicalId\":443,\"journal\":{\"name\":\"Water Research\",\"volume\":\"102 1\",\"pages\":\"\"},\"PeriodicalIF\":12.4000,\"publicationDate\":\"2025-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1016/j.watres.2025.124719\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.watres.2025.124719","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Intensification of ozone gas/liquid mass transfer and ozonation efficiency: a critical review
Ozone (O3) is effective for degrading persistent organic pollutants in wastewater but its efficiency is limited by poor O3 gas/liquid mass transfer (kLa) and low O3 utilization efficiency (typically 30%-64% in bubble columns). This review critically evaluates strategies to intensify O3 mass transfer and enhance pollutant degradation. The kLa and energy consumption in different commonly used ozone contactors was compared, highlighting the importance of developing enhancement methods. Based on this, four types of techniques (i.e. applying physical fields, implementing membrane technology, utilizing micro/nano bubbles, and adding additives) were evaluated using kLa enhancement factor, pollutant degradation efficiency, and scalability as criteria. Physical methods (including ultrasound, electric field, and high gravity) enhanced kLa by 1.3–3 times but face scalability challenges due to high energy demands. Micro/nano-bubble producing systems coupled with catalysts such as activated carbon or chemical additives achieved kLa enhancements 3-4 times, increasing degradation of refractory pollutants by over 60% removal. However, the microbubble generation also demands additional energy and chemical additives may cause secondary pollution. Natural mineral packings provide a balanced solution, enhancing kLa by 2.5–3 times and recalcitrant pollutant removal by 25–30% at low energy consumption without secondary separation issues. For scalability, membrane contactors and catalytic microbubble have been applied at large-scale wastewater treatment while the stability of membrane and catalysts needs to be further improved. Overall, this study identifies favorable strategy for O3 gas/liquid mass transfer and pollutant removal for sustainable water treatment.
期刊介绍:
Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include:
•Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management;
•Urban hydrology including sewer systems, stormwater management, and green infrastructure;
•Drinking water treatment and distribution;
•Potable and non-potable water reuse;
•Sanitation, public health, and risk assessment;
•Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions;
•Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment;
•Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution;
•Environmental restoration, linked to surface water, groundwater and groundwater remediation;
•Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts;
•Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle;
•Socio-economic, policy, and regulations studies.