超声辐射法对制药废水深度处理中活性炭再生效果研究

摘要：

活性炭因其优异的吸附性能被广泛应用于制药废水的深度处理.传统的热再生技术存在能耗高、炭损失率大等技术难题,亟需开发高效且低损耗的新型再生技术.以诺氟沙星制药废水深度处理系统的饱和活性炭为研究对象,采用超声辐射法进行再生,并对其工艺参数进行了优化,通过多种表征手段分析了再生前后活性炭的结构与性能变化.结果显示,在超声频率20 kHz、功率密度2.6 W/mL、处理时间30min以及0.2mol/L NaOH-5%乙醇复合介质条件下,再生效率可达79.7%.经过5次再生循环后,活性炭仍保持较高再生率,且累计炭损失率低于2.0%.微观结构分析表明,超声诱导的物理剥离、自由基氧化和介质化学作用的协同效应促进污染物温和脱附,并有效保护了活性炭的框架结构.因此,超声再生技术为活性炭的高效绿色循环利用和制药废水深度治理提供了新思路和技术支撑.

Activated carbon is widely employed in the advanced treatment of pharmaceutical wastewater due to its re-markable adsorption capacity. However, traditional thermal regeneration methods are constrained by high energy consumption and significant carbon loss, In this study, saturated activated carbon from a norfloxacin pharmaceutical wastewater treatment system was regenerated via ultrasonic irradiation, and comprehensive characterization techniques were used to assess structural and performance changes in the activated carbon before and after regeneration. The results demonstrated that under optimal conditions (an ultrasontc frequtency of 20 kHz, a power density of 2.6 W/ ml, a treatment time of 30 minutes and a composite medlium of 0.2 mol/L NaOH and 5% ethanol). the regeneraiton effdiency readhed 79.7%.Even after five regeneration cycles,the activated carbon retained a high regeneration rate, with cumulative carbon loss remaining below 2.0%. Microstructural ana-Iyses revealed that the synergistic effects of ultrasonic-induced physical stripping, free radical oxidation, and chemical action from the composite medium facilitated mild pollutant desorprion while effectively preserving the structural integrity of the acti-vated carbon. Therefore, ultrasonic regeneration technology provides a promising approach for the efficient, sustainable reuse of activated carbon and the advanced treatment of pharmaceutical wastewater.

作者: 

闫怡新,董洁,耿颖,付志轩,王琦琨,高健磊

Yan Yixin,Dong Jie,Geng Ying,Fu Zhixuan,Wang Qikun,Gao Jianlei

机构地区：

郑州大学生态与环境学院

引用本文：

闫怡新,董洁,耿颖,等,超声辐射法对制药废水深度处理中活性炭再生效果研究[J].河南师范大学学报(自然科学版),2026,54 (1):26-34. (Yan Yixin, Dong Jie, Geng Ying, et al.Regeneration of activated carbon in ad-vanced treatment of pharmaceutical wastewater by ultrasonic radiation[J]. Journal of Henan Normal University(Natural Science Edition),2026,54(1):26-34.DOI:10.16366/j.cnki.1000-2367.2024.10.16.0001.)

基金：

国家重点研发计划项目

关键词：

活性炭;诺氟沙星废水;超声再生;复合介质;结构稳定性

activated carbon; norfloxacin wastewater; ultrasonic regeneration; composite medium; structural stability

分类号：

X703

超声辐射法对制药废水深度处理中活性炭再生效果研究.pdf