氨氮与2-氨基吡啶在三维电催化氧化降解中的竞争

doi:10.16085/j.issn.1000-6613.2015.01.048

化工进展 ›› 2015, Vol. 34 ›› Issue (1): 273-277.DOI: 10.16085/j.issn.1000-6613.2015.01.048

氨氮与2-氨基吡啶在三维电催化氧化降解中的竞争

李明¹, 潘珍¹, 梁雪梅¹, 赵艳娇¹, 邱野¹, 孟勇^1,2, 尹笃林²

1 湖南师范大学资源循环综合技术研究中心, 湖南长沙 410081;
2 石化新材料与资源精细利用国家地方联合工程实验室, 湖南长沙 410081

收稿日期:2014-06-06 修回日期:2014-07-05 出版日期:2015-01-05 发布日期:2015-01-05
通讯作者: 孟勇,副教授,博士,研究方向为废水、净水处理剂及其工艺研究。E-mail mengyong76@163.com。
作者简介:李明(1987-),男,博士研究生,研究方向为废水处理与水资源循环利用技术。

Competition of ammonia and 2-aminopyridine in three-dimensional electrocatalytic oxidation

LI Ming¹, PAN Zhen¹, LIANG Xuemei¹, ZHAO Yanjiao¹, QIU Ye¹, MENG Yong^1,2, YIN Dulin²

1 Research Center of Resource Recycling Integrated Technology, Hunan Normal University, Changsha 410081, Hunan, China;
2 National & Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha 410081, Hunan, China

Received:2014-06-06 Revised:2014-07-05 Online:2015-01-05 Published:2015-01-05

摘要/Abstract

摘要： 采用CuO-ZnO/多孔陶瓷为粒子电极的三维电催化氧化技术,对氨氮与2-氨基吡啶模拟废水的电催化氧化降解中的竞争过程进行研究。考察了氨氮及氨氮与2-氨基吡啶直接氧化和间接氧化降解的情况,并分析了氨氮与2-氨基吡啶的竞争反应过程。结果表明:间接氧化过程更有利于氨氮的去除,并可降低硝酸盐氮的累积率,2-氨基吡啶主要通过直接氧化降解,不受氨氮和氯离子的影响,直接氧化条件下2-氨基吡啶开环产物与氨氮存在强烈的竞争现象,间接氧化对2-氨基吡啶开环产物与氨氮的降解都有提高,且氨氮的去除优先于2-氨基吡啶开环产物。因此,可以通过改变三维电催化体系的直接和间接氧化条件,调整氨氮与有机物的去除效果,并可应用于含氨氮有机废水处理的现场调试。

关键词: 三维电催化氧化, 氨氮, 2-氨基吡啶, 竞争反应, 三维电催化氧化, 氨氮, 2-氨基吡啶, 竞争反应

Abstract: Competition between ammonia and 2-aminopyridine was studied by three-dimensional electrocatalytic with CuO-ZnO/porous ceramic as particle electrodes. The direct and indirect electro- oxidation degradation of ammonia,ammonia and 2-aminopyridine was investigated,and competition between ammonia and 2-aminopyridine was analyzed. Indirect oxidation process was more conducive to removing ammonia,and could reduce accumulation rate of nitrate nitrogen,while 2-aminopyridine was degraded mainly through direct oxidation and was not affected by ammonia and chloride ions. Ammonia and intermediates of 2-aminopyridine showed strong competition under direct electro-oxidation. Degradation of ammonia and intermediates of 2-aminopyridine increased under indirect electro-oxidation,and ammonia was preferably removed than 2 - aminopyridine intermediates. Changing the conditions for direct and indirect electro-oxidation of the three-dimensional system could adjust removal of ammonia and organic matter,and could be used in commissioning wastewater treatment facility.

Key words: three-dimensional electrocatalytic oxidation, ammonia, 2-aminopyridine, competitive reaction, three-dimensional electrocatalytic oxidation, ammonia, 2-aminopyridine, competitive reaction

中图分类号:

X703

李明, 潘珍, 梁雪梅, 赵艳娇, 邱野, 孟勇, 尹笃林. 氨氮与2-氨基吡啶在三维电催化氧化降解中的竞争[J]. 化工进展, 2015, 34(1): 273-277.

LI Ming, PAN Zhen, LIANG Xuemei, ZHAO Yanjiao, QIU Ye, MENG Yong, YIN Dulin. Competition of ammonia and 2-aminopyridine in three-dimensional electrocatalytic oxidation[J]. Chemical Industry and Engineering Progree, 2015, 34(1): 273-277.

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氨氮与2-氨基吡啶在三维电催化氧化降解中的竞争

Competition of ammonia and 2-aminopyridine in three-dimensional electrocatalytic oxidation

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