| 高压脉冲放电等离子体对水中土霉素的降解 |
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| 引用本文： | 张艳, 孙亚兵, 何东, 边琳, 陆素洁, 赵泽华, 荣少鹏. 高压脉冲放电等离子体对水中土霉素的降解[J]. 环境工程学报, 2014, 8(10): 4280-4284. |
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| 作者姓名： | 张艳 孙亚兵 何东 边琳 陆素洁 赵泽华 荣少鹏 |
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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 |
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| 基金项目： | 污染控制与资源化国家重点实验室开放基金(PCRRF-10016);江苏省环保科研课题资助项目(2013015) |
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| 摘 要： | 采用针-板式高压脉冲放电等离子体降解水中土霉素，考察了放电输出功率、空气流量、电极间距、溶液初始浓度、初始pH、初始电导率和添加Fe2+的量对土霉素去除率的影响。实验结果表明，高压脉冲放电等离子体对水中土霉素有较好的去除效率，在初始浓度200 mg/L，放电功率64 W，电极间距8 mm，空气流速0.05 m3/h，初始pH为2.6，初始电导率1.083 mS/cm条件下，反应12 min后，土霉素的去除率可达97%。向溶液中添加Fe2+，可提高土霉素的去除率。TOC随着反应时间的延长逐渐减小，反应12 min时，TOC去除率可达57%，说明大分子物质被降解为小分子物质，部分被完全矿化为CO2和H2O。
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| 关 键 词： | 高压脉冲放电等离子体 针-板反应器 土霉素 降解 |
| 收稿时间： | 2013-11-17 |
Degradation of aqueous oxytetracycline by high voltage pulsed discharge plasma |
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| Zhang Yan, Sun Yabing, He Dong, Bian Lin, Lu Sujie, Zhao Zehua, Rong Shaopeng. Degradation of aqueous oxytetracycline by high voltage pulsed discharge plasma[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4280-4284. |
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| Authors: | Zhang Yan Sun Yabing He Dong Bian Lin Lu Sujie Zhao Zehua Rong Shaopeng |
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| Affiliation: | 1.State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China |
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| Abstract: | Degradation of aqueous oxytetracycline was conducted by needle-plate high voltage pulsed discharge plasma.The effects of output power,airflow rate,discharge distance,initial concentration,initial pH value,initial conductivity and Fe2+ concentration on the degradation efficiency of oxytetracycline were examined.The experimental results showed that high removal rates of aqueous oxytetracycline were observed by high voltage pulsed discharge plasma.When the discharge time was 12 min,97% of oxytetracycline was removed under the conditions of initial concentration of 200 mg/L,output power of 64 W,discharge distance of 8 mm,airflow rate of 0.05 m3/h,initial pH of 2.6 and initial conductivity of 1.083 mS/cm.The degradation efficiency of oxytetracycline increased with the adding of Fe2+.TOC of the oxytetracycline solution decreased with increasing discharge time,and the TOC removal rates reached to 57% after discharging for 10 min,which showed that the macromolecules were degraded to small molecules,and parts of the intermediate products were mineralized into carbon dioxide and water. |
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| Keywords: | high voltage pulsed discharge plasma needle-plate reactor oxytetracycline degradation |
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