介质阻挡放电等离子体反应器降解盐酸四环素

doi:10.11949/j.issn.0438-1157.20170878

化工学报 ›› 2018, Vol. 69 ›› Issue (4): 1687-1694.DOI: 10.11949/j.issn.0438-1157.20170878

介质阻挡放电等离子体反应器降解盐酸四环素

王保伟, 王超, 徐艳, 彭叶平, 姚淑美

天津大学化工学院绿色合成与转化教育部重点实验室, 天津 300072

收稿日期:2017-07-10 修回日期:2017-10-18 出版日期:2018-04-05 发布日期:2018-04-05
通讯作者: 王保伟
基金资助:
国家重点研发计划项目（2016YFB0600701）。

Degradation of tetracycline hydrochloride using dielectric barrier discharge plasma reactor

WANG Baowei, WANG Chao, XU Yan, PENG Yeping, YAO Shumei

Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2017-07-10 Revised:2017-10-18 Online:2018-04-05 Published:2018-04-05
Supported by:
supported by the National Key R&D Program of China (2016YFB0600701).

摘要/Abstract

摘要：

采用介质阻挡放电等离子体反应器降解盐酸四环素（TC），研究了输入功率、放电间距、气体流量、初始浓度等参数对盐酸四环素降解效果的影响，结果表明当输入功率为1.3 W，放电间距为2.5 mm，气体流量为150 ml·min^-1，初始浓度为100 mg·L^-1时降解效果最好，放电处理30 min盐酸四环素的降解率达到92%。动力学研究表明盐酸四环素的降解过程符合拟二级动力学方程。检测了降解过程中生成的中间产物，提出了盐酸四环素的降解路径与机理。

关键词: 介质阻挡放电, 废水, 盐酸四环素, 降解, 机理, 氧化

Abstract:

A dielectric barrier discharge plasma reactor was applied to the degradation of tetracycline hydrochloride in the aqueous solution. A series of parameters including input power, air-gap distance, initial concentration and air flow rate were investigated for their effects on the degradation efficiency. The results showed that the degradation efficiency was as high as 92% at the optimum degradation parameters:input power 1.3 W, air-gap distance 2.5 mm, air flow rate 150 ml·min^-1, tetracycline hydrochloride initial concentration 100 mg·L^-1 and treatment time 30 min. The kinetic studies indicated that the degradation of tetracycline hydrochloride followed the pseudo-second-order kinetics. Based on the intermediate products identified by LC-MS, a possible degradation pathway of tetracycline hydrochloride was proposed.

Key words: dielectric barrier discharge, wastewater, tetracycline hydrochloride, degradation, mechanism, oxidation

中图分类号:

X703

王保伟, 王超, 徐艳, 彭叶平, 姚淑美. 介质阻挡放电等离子体反应器降解盐酸四环素[J]. 化工学报, 2018, 69(4): 1687-1694.

WANG Baowei, WANG Chao, XU Yan, PENG Yeping, YAO Shumei. Degradation of tetracycline hydrochloride using dielectric barrier discharge plasma reactor[J]. CIESC Journal, 2018, 69(4): 1687-1694.

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介质阻挡放电等离子体反应器降解盐酸四环素

Degradation of tetracycline hydrochloride using dielectric barrier discharge plasma reactor

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