传统臭氧化与微气泡臭氧化技术对废水中诺氟沙星的去除性能  

Performance of conventional bubble ozonation and microbubble ozonation on norfloxacin removal from wastewater

作　　者：于倩 张静[1,2] 丁亮亮 刘春 闫晨旭[1,2] 牛建瑞 张瑞娜 YU Qian;ZHANG Jing;DING Liangliang;LIU Chun;YAN Chenxu;NIU Jianrui;ZHANG Ruina(School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Pollution Prevention Biotechnology Laboratory of Hebei Province,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学环境科学与工程学院,石家庄050018 [2]河北省污染防治生物技术实验室,石家庄050018

出　　处：《环境工程学报》2025年第2期291-301,共11页Chinese Journal of Environmental Engineering

基　　金：国家重点研发计划项目(2022YFE0119000)。

摘　　要：传统臭氧氧化技术(CB/O_(3))在废水中去除抗生素的性能较差,而微气泡臭氧化技术(MB/O_(3))因其气泡小、上升速度慢等特点可强化对抗生素的去除性能。该研究主要从诺氟沙星(norfloxacin,NOF)去除率、总有机碳(total organic carbon,TOC)去除率、UV254去除率、pH、液相臭氧浓度、臭氧利用率等指标探究了CB/O_(3)与MB/O_(3)技术在NOF废水中的去除性能,并对2种技术的紫外-可见吸收光谱、三维荧光光谱、一级反应动力学拟合进行了分析,最后对MB/O_(3)的实验条件进行了优化。结果表明,MB/O_(3)较CB/O_(3)的NOF、TOC、UV254去除率和臭氧利用率均有显著提高,分别提高了7.49%、22.56%、64.08%和20.04%;最佳实验条件为:NOF质量浓度50 mg·L^(-1)(体积10L);臭氧投加量12 mg·min^(-1);臭氧气体流速300 mL·min^(-1)。以上研究结果对MB/O_(3)技术在工程应用上可提供数据支撑。Conventional bubble oxidation technology(CB/O_(3))has a poor performance on removing antibiotic from wastewater,while microbubble ozonation technology(MB/O_(3))can strengthen its performance on antibiotic removal due to its properties of small bubbles,slow rise rate,etc..In this study,the performances of CB/O_(3) and MB/O_(3) technologies on NOF removal from wastewater were investigated mainly in terms of norfloxacin(NOF)removal,TOC removal,UV254 removal,pH,liquid phase ozone concentration,and ozone utilization.And the UV-visible absorption spectra,three-dimensional fluorescence spectra,and first-order reaction kinetic fitting for both techniques were also analyzed.Finally,the experimental conditions for MB/O_(3) technology were optimized.The results showed that MB/O_(3) technology had a significant improvement in NOF,TOC,UV254 removal and ozone utilization over the CB/O_(3) technology by 7.49%,22.56%,64.08%and 20.04%,respectively.The optimal experimental conditions were following:NOF wastewater concentration of 50 mg·L^(-1)(volume 10L);ozone dosage of 12 mg·min^(-1) and ozone gas flow rate of 300 mL·min^(-1).The above findings can provide a data support for MB/O_(3) technology in engineering applications.

关 键 词：臭氧 微气泡 诺氟沙星 去除性能 条件优化 

分 类 号：X703[环境科学与工程—环境工程]