摘要
采用脉冲开关电源代替传统电吸附中的直流稳压电源,用活性炭粉末为吸附材料制备电极板,并构建了脉冲电吸附反应装置.比较了脉冲电吸附法和直流电吸附法在吸附去除模拟废水中NO3-N和NH3-N的去除率差异,60 min内,脉冲电吸附法有更高的去除率.以NO3-N的去除率为判据,研究了脉冲电流的占空比和频率对氮素去除率的影响.结果表明,在占空比50%、频率10^4Hz的条件下,NO3-N的去除率最高.
A pulse electrosorption reaction device was constructed,in which the pulse-switching power supply was used to replace the DC stabilized power supply adopted in the traditional electro-adsorption,and the activated carbon powder was used as the adsorbent material to prepare the electrode plate.The removal rates of NO3-N and NH3-N in the simulated wastewater using pulse electrosorption method and direct current adsorption method were compared and results show that the removal rate of the pulse electrosorption method is higher within 60min.Taking the removal rate of NO3-N as the index,the effects of duty cycle and frequency on nitrogen removal rate were also studied.The results show that the removal rate of NO3-N is the highest when the duty cycle is 50%and the frequency is 10^4Hz.
作者
金肇岩
胡筱敏
孙通
赵研
JIN Zhao-yan;HU Xiao-min;SUN Tong;ZHAO Yan(School of Resources & Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2019年第10期1487-1490,1495,共5页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(51678118)
关键词
电吸附
脉冲电场
占空比
频率
深度脱氮
electrosorption
pulsed electric field
duty cycle
frequency
advanced denitrogenation
