用Fenton技术去除水中盐酸左氧氟沙星

吉林大学学报(理学版)

用Fenton技术去除水中盐酸左氧氟沙星

孙影 ¹, 李美璇¹, 彭举威², 郭平¹

1. 吉林大学环境与资源学院, 地下水资源与环境教育部重点实验室, 长春 130012;2. 吉林建筑大学市政与环境工程学院, 长春 130118

收稿日期:2017-06-08 出版日期:2018-03-26 发布日期:2018-03-27
通讯作者: 郭平 E-mail:guoping@jlu.edu.cn

Removal of Levofloxacin Hydrochloride in Water by Fenton Technique

SUN Ying¹, LI Meixuan¹, PENG Juwei², GUO Ping¹

1. Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, Changchun 130012, China;2. School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun 130118, China

Received:2017-06-08 Online:2018-03-26 Published:2018-03-27
Contact: GUO Ping E-mail:guoping@jlu.edu.cn

摘要/Abstract

摘要： 研究Fenton高级氧化技术对水中抗生素盐酸左氧氟沙星的去除效果, 并考察n(H₂O₂)∶n(Fe²⁺)、 H₂O₂投加量、溶液初始pH值、反应时间和初始质量浓度对去除效果的影响. 结果表明: 当n(H₂O₂)∶n(Fe²⁺)=5~25时, 盐酸左氧氟沙星、化学需氧量(K₂Cr₂O₇法, COD_Cr）和总有机碳(TOC)的去除率随二者物质的量比的增加先增加后降低；当H₂O₂投加量为15 mL/L时, 盐酸左氧氟沙星、 COD_Cr和TOC去除率分别为88.40%,5952%,3380%; 当pH=3时, 盐酸左氧氟沙星、 COD_Cr和TOC的去除率分别为9240%,5952%,3451%; 盐酸左氧氟沙星、 COD_Cr和TOC的去除率随反应时间呈逐渐增加的趋势, 去除率随初始质量浓度的升高而下降; 当反应时间为3 h时, 去除过程基本完成. 在pH=3, 温度为20 ℃, H₂O₂投加量为15 mL/L, n(H₂O₂)∶n(Fe²⁺)=10的条件下, Fenton高级氧化技术对水中盐酸左氧氟沙星的去除效果最好, 达9640%.

关键词: 盐酸左氧氟沙星, Fenton反应, 化学需氧量, 总有机碳

Abstract: We studied the effect of Fenton advanced oxidation on the removal of levofloxacin hydrochloride in water, and investigated the effects of n(H₂O₂)∶n(Fe²⁺), H₂O₂ dosage, initial pH value, reaction time and initial mass concentration on the removal efficiency. The results show that the removal rates of levofloxacin hydrochloride, chemical oxygen demand (by K₂Cr₂O₇, COD_Cr) and total organic carbon (TOC) increase first and then decrease with the increase of n(H₂O₂)∶n(Fe²⁺) in the range of 5—25. When the dosage of H₂O₂was 15 mL/L, the removal rates of levofloxacin hydrochloride, COD_Cr and TOC are 88.40%, 59.52% and 33.80%, respectively. When pH=3, the removal rates of levofloxacin hydrochloride, COD_Cr and TOC are 9240%,5952% and 3451%, respectively. The removal rate of levofloxacin hydrochloride, COD_Cr and TOC gradually increase with the time, and the removal rate decrease with the initial mass concentration. When the reaction time is 3 h, the removal process is basically comp
leted. The effect of Fenton advanced oxidation on the removal of levofloxacin hydrochloride in water is the best at the conditions of pH=3, temperature is 20 ℃, H₂O₂ dosage is 15 mL/L, n(H₂O₂)∶n(Fe²⁺)=10, the removal efficiency is 96.40%.

Key words: total organic carbon (TOC), levofloxacin hydrochloride, Fenton reation, chemical oxygen demand (COD)

中图分类号:

孙影, 李美璇, 彭举威, 郭平. 用Fenton技术去除水中盐酸左氧氟沙星[J]. 吉林大学学报(理学版), 2018, 56(2): 446-451.

SUN Ying, LI Meixuan, PENG Juwei, GUO Ping. Removal of Levofloxacin Hydrochloride in Water by Fenton Technique[J]. Journal of Jilin University Science Edition, 2018, 56(2): 446-451.

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