| 电晕放电等离子体技术处理水中四环素的研究 |
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| 引用本文： | 何东,孙亚兵,冯景伟,张艳,李舜斌,赵泽华,管大祥. 电晕放电等离子体技术处理水中四环素的研究[J]. 环境科学学报, 2014, 34(9): 2219-2225 |
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| 作者姓名： | 何东 孙亚兵 冯景伟 张艳 李舜斌 赵泽华 管大祥 |
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| 作者单位： | 1. 污染控制与资源化研究国家重点实验室, 南京大学环境学院, 南京 210046;1. 污染控制与资源化研究国家重点实验室, 南京大学环境学院, 南京 210046;2. 合肥工业大学, 土木与水利工程学院, 合肥 230009;1. 污染控制与资源化研究国家重点实验室, 南京大学环境学院, 南京 210046;1. 污染控制与资源化研究国家重点实验室, 南京大学环境学院, 南京 210046;1. 污染控制与资源化研究国家重点实验室, 南京大学环境学院, 南京 210046;3. 中国矿业大学, 江苏省资源环境信息工程重点实验室, 徐州 221116 |
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| 基金项目： | 国家自然科学基金（No.51208163，51108149）；污染控制与资源化研究国家重点实验室开放课题（No.PCRRF11014） |
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| 摘 要： | 采用电晕放电等离子体技术降解水中的四环素,研究了在反应体系中,初始浓度、输入功率、电极间距、空气流量及初始pH对四环素去除效率的影响.同时,还对四环素在降解过程中不同时段的COD、TOC和B/C变化进行了研究,并对其降解产物进行了分析和讨论.实验结果表明:电晕放电等离子体对水中四环素具有较好的去除效果,在四环素初始浓度为200 mg·L-1、pH=2.47、初始电导率为1.50 mS·m-1、空气流量为0.06 m3·h-1、电极间距为4 mm、输入功率为45.0 W的条件下,反应20 min后,四环素的去除率可达到99.1%,COD去除率可达31.2%,TOC去除率可达80%左右,其B/C比提高为0.30,有效地改善了废水的可生化性.
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| 关 键 词： | 电晕放电 等离子体 四环素 去除率 |
| 收稿时间： | 2013-10-28 |
| 修稿时间： | 2014-03-21 |
Removal of aqueous tetracycline by corona discharge plasma |
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| HE Dong,SUN Yabing,FENG Jingwei,ZHANG Yan,LI Shunbin,ZHAO Zehua and GUAN Daxiang. Removal of aqueous tetracycline by corona discharge plasma[J]. Acta Scientiae Circumstantiae, 2014, 34(9): 2219-2225 |
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| Authors: | HE Dong SUN Yabing FENG Jingwei ZHANG Yan LI Shunbin ZHAO Zehua GUAN Daxiang |
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| Affiliation: | 1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046;1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046;2. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009;1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046;1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046;1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046;3. Jiangsu Key Laboratory of Resources and Environmental Information Engineering, China University of Mining and Technology, Xuzhou 221116 |
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| Abstract: | Corona discharge plasma was adopted to treat aqueous tetracycline. The effects of initial concentration, input power intensity, electrode distance, air flow rate and initial pH value on the removal of aqueous tetracycline were investigated in this system. The changes of COD concentration, TOC concentration and the ratio of B/C in the degradation process were also analyzed, and the degradation products were discussed briefly. The experimental results showed that higher removal rates for tetracycline removal were observed after 20 min. 31.2% of COD, 80% of TOC and 99.1% of tetracycline were removed with the initial tetracycline concentration 200 mg·L-1, initial pH value 2.47, initial conductivity 1.50 mS·m-1, airflow rate 0.06 m3·h-1, discharge distance 4 mm and input power intensity 45.0 W. The ratio of B/C increased to over 0.30, and the biodegradability was improved effectively. |
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| Keywords: | corona discharge plasma tetracycline removal rate |
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