环境工程学报2013，Vol.7Issue(3)：815-819,5.
电化学氧化法去除超高盐榨菜废水中的氨氮
Removal of ammonia nitrogen from hypersaline pickle wastewater by electrochemical oxidation
摘要
Abstract
Method of electrochemical oxidation was applied to remove ammonia nitrogen from hypersaline pickle wastewater. The anode was Ti/RuO2-TiO2-IrO2-SnO2 expanded metal sheet electrode. The cathode was expanded metal sheet electrode. The effects of current density, reaction time, electrode distance, initial pH and electrode plate area/water volume ration on removal rate of ammonia nitrogen were systematically investigated. The ammonia nitrogen energy consumption and anode efficiency were analyzed in different current densities. Under the conditions with initial ammonia nitrogen concentration of 472. 73 mg/L, current density of 156 mA/cm2 , e-lectrode distance of 1.5 cm, electrode plate area/ water volume ration of 0.8 dm2/L and initial pH of 4. 3 ~5.0, removals of ammonia nitrogen were 89. 75% and 99. 94% within 30 min and 60 min, respectively. The energy consumption was 96 kWh/kg(NH4+-N) and the anode efficiency was 8.47 g(NH4+-N)/(h · m -A) when reaction time was 30 min.关键词
电化学氧化/含盐废水/氨氮/电流密度Key words
electrochemical oxidation/ saline wastewater/ ammonia nitrogen/ current density分类
资源环境引用本文复制引用
渠光华,张智,郑海领..电化学氧化法去除超高盐榨菜废水中的氨氮[J].环境工程学报,2013,7(3):815-819,5.基金项目
国家"水体污染控制与治理"科技重大专项(2008ZX07315-004) （2008ZX07315-004）
