[1]刘汝鹏,郝玉友,罗从伟,等.紫外/一氯胺降解水中氯霉素的性能与机理研[J].中国给水排水,2021,37(9):51-56.
　LIU Ru-peng,HAO Yu-you,LUO Cong-wei,et al.Performance and Mechanism of Chloramphenicol Degradation in Aqueous Solution by Ultraviolet/Monochloroamine[J].China Water & Wastewater,2021,37(9):51-56.
点击复制

紫外/一氯胺降解水中氯霉素的性能与机理研

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第9期 页码: 51-56 栏目: 出版日期: 2021-05-01
Title:
Performance and Mechanism of Chloramphenicol Degradation in Aqueous Solution by Ultraviolet/Monochloroamine
作者:
刘汝鹏1，郝玉友2，罗从伟3，武道吉3，成小翔3
(1.山东建筑大学资源与环境创新研究院,山东济南250101；2.莒县城乡建设服务中心，山东莒县276599；3.山东建筑大学市政与环境工程学院,山东济南250101)
Author(s):
LIU Ru-peng1,HAO Yu-you2,LUO Cong-wei3,WU Dao-ji3,CHENG Xiao-xiang3
(1. Resources and Environment Innovation Institute, Shandong Jianzhu University, Jinan 250101， China; 2. Juxian Urban and Rural Constrction Service Center, Juxian 276599， China; 3. College of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101， China)
关键词:
紫外; 一氯胺; 氯霉素; 反应动力学; 影响因素; 消毒副产物
Keywords:
UV; monochloroamine(NH2Cl); chloramphenicol (CAP); degradation kinetics; influencing factor; DBPs
摘要:
以抗生素中典型的氯霉素（CAP）作为研究对象，探讨了紫外/一氯胺（UV/NH2Cl）高级氧化技术降解CAP的反应动力学、影响因素和消毒副产物生成情况。结果表明，对比单独UV工艺及UV/NH2Cl高级氧化技术，NH2Cl的加入可以明显提高CAP的降解速度，假一级动力学降解速率常数可达0.017 2 min-1。提升NH2Cl浓度可以促进CAP的降解，然而随着pH值的增加，对CAP的降解率呈现先增加后降低的趋势，在pH值为7时降解率最大。此外，在UV/NH2Cl体系中，水中的无机阴离子（Cl-、Br-、HCO3-）及天然有机物（NOM）的存在均会对CAP的降解起到不同程度的抑制作用。在消毒副产物的生成方面，相比单独的NH2Cl预氧化方式，UV/NH2Cl预氧化会降低后续氯胺消毒过程中三氯硝基甲烷、二氯乙腈、二氯乙酰胺和三氯乙酰胺的产生。
Abstract:
Chloramphenicol (CAP),a typical antibiotic,was degraded by an advanced oxidation technology—ultraviolet/monochloroamine (UV/NH2Cl), and the degradation kinetics, influencing factors and disinfection byproducts(DBPs) formation were investigated. Compared with single UV process, the addition of NH2Cl could significantly improve the degradation rate of CAP, and the pseudo-first-order kinetic rate constant could reach 0.017 2 min-1. Increasing NH2Cl concentration was conducive to improve the degradation efficiency of CAP. However, with the increase of pH value, the degradation rate of CAP increased first and then decreased, and the degradation rate reached the maximum when the pH value was 7. In addition, the presence of some inorganic anions （Cl-，Br-，HCO3-） and natural organic matter (NOM) would inhibit CAP removal to different degrees. Compared with single NH2Cl pre-oxidation method, UV/NH2Cl pre-oxidation could decrease the production of trichloronitromethane, dichloroacetonitrile, dichloroacetamide and trichloroacetamide in the subsequent chloramine disinfection process.

相似文献/References:

[1]雷晨,许路,张琼华,等.紫外活化过硫酸盐技术用于污水厂二级出水深度处理[J].中国给水排水,2020,36(15):86.
　LEI Chen,XU Lu,ZHANG Qiong-hua,et al.Advanced Treatment of Secondary Effluent from a Wastewater Treatment Plant by Ultraviolet Activated Persulfate[J].China Water & Wastewater,2020,36(9):86.
[2]李梦宇,刘志,张天阳,等.氯胺消毒工艺中一氯胺生成效率的影响规律[J].中国给水排水,2021,37(3):38.
　LI Meng-yu,LIU Zhi,ZHANG Tian-yang,et al.Impact Factors of Monochloramine Formation Efficiency during Chloramination Disinfection[J].China Water & Wastewater,2021,37(9):38.
[3]张天阳,魏海娟,姚杰,等.污水处理厂不同紫外/氯化组合工艺的消毒效能对比[J].中国给水排水,2021,37(17):19.
　ZHANG Tian-yang,WEI Hai-juan,YAO Jie,et al.Comparison of Disinfection Efficiency of Different UV/Chlorination Combined Processes in Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(9):19.
[4]张国珍,王宏伟,李晓燕,等.紫外活化过硫酸盐降解水中阿莫西林的特性[J].中国给水排水,2021,37(19):53.
　ZHANG Guo-zhen,WANG Hong-wei,LI Xiao-yan,et al.Characteristics of Ultraviolet Activated Persulfate for Degradation of Amoxicillin in Water[J].China Water & Wastewater,2021,37(9):53.

更新日期/Last Update: 2021-05-01