摘要
通过对电化学方法处理含氮废水的实验条件、处理效果以及降解机制的对比分析发现,在电化学法处理含氮废水的几种主要影响因素中,作用顺序为氯离子浓度>填充粒子>极板>电流密度>pH>初始浓度.其中,Cl-能够促进不同形态氮向氮气转化,缺点为易生成二次污染物.电化学法处理含氮废水在实际应用中效果显著,但由于实际废水中组分复杂,部分有机物、盐分等明显抑制含氮化合物的电化学氧化还原反应,因此需要从提高反应选择性和增强去除效果两方面对工艺参数、极板材料、反应器结构、与其他技术耦合应用进行重点研究.
In this paper,the electrochemical treatment of nitrogenous wastewater in recent years was compared and analyzed,to further explore the optimal experimental conditions,treatment effect and degradation mechanism of ammonia nitrogen in wastewater,and identify several main influencing factors(concentration of chloride ion>filled particle>electrode plate>current density>pH>initial concentration)for electrochemical treatment of nitrogenous wastewater.Among them,chlorine ions could promote the conversion of different forms of ammonia like nitrogen,but the secondary pollutants were easily generated in the chlorine-containing system.Due to the complex components in the actual wastewater,some organic compounds and salts obviously inhibit the electrochemical oxidation-reduction reaction of nitrogenous compounds,so it was necessary to focus on the research process parameters,plate materials,reactor structure and coupling application with other technologies from improving the reaction selectivity and enhancing the removal effect.
作者
滕洪辉
李天育
陈钰琦
冯一航
晏卓立
张静
王新迪
TENG Hong-hui;LI Tian-yu;CHEN Yu-qi;FENG Yi-hang;YAN Zuo-li;ZHANG Jing;WANG Xin-di(College of Environmental Science and Engineering,Jilin Normal University,Siping 136000,China;Key Laboratory of Environmental Materials and Pollution Control,the Education Department of Jilin Province,Jilin Normal University,Siping 136000,China)
出处
《吉林师范大学学报（自然科学版）》
2021年第1期82-87,共6页
Journal of Jilin Normal University:Natural Science Edition
基金
吉林省科技厅技术攻关项目(20190303071SF)。
关键词
电化学
含氮废水
粒子电极
极板材料
electrochemical method
nitrogenous wastewater
particle electrode
materials of bipolar plate
