摘要
研究了氨氮废水在流动式电解槽中的间接电化学氧化,讨论了氯离子浓度、电解液流速、氨氮初始浓度对氨氮去除的影响结果表明,氯离子浓度和电解液流速对氨氮的去除速率有很大的影响当电流密度为50mA·cm-2、流速为50ml·min-1时,氨氮去除速率常数为389×10-5g·l-1·m-1·s-1。
In this paper, the indirect electrochemical oxidation of ammonium nitrogen(NH_~3 -N) wastewater was investigated in a flow electrochemical cell. The effect of chloride ion concentration, flow rate and initial NH_~3 -N concentration on NH_~3 -N concentration decay was elucidated. The cell performance was evaluated in terms of the decay of NH_~3 -N-concentration as a function of the current density, flow rate, and initial NH_~3 -N concentration. The experimental results indicated that chloride ion concentration and flow rate have a great effect on NH_~3 -N concentration removal rate. For the operational conditions used in the experiments, the rate constant for ~NH_~3 -N decay was with a average value of 3.89×10^-5 g·l^-1 ·m^-1 ·s^-1 for a current density of 50~~mA·cm^-2 and a flow rate of 50ml·min^-1 .Using these parameters, 55.7kWh is consumed for the complete removal of 1kg of NH_3-N.
出处
《环境化学》
CAS
CSCD
北大核心
2005年第2期146-149,共4页
Environmental Chemistry
基金
国家"十五"科技攻关重点项目(2004BA313B-6)
吉林省社会发展重大项目(20040405-3)资助
