Degradation of Nitrobenzene by Pulsed High Voltage Discharge in Water
Degradation of nitrobenzene by pulsed high voltage discharge in water, including the effects of discharge conditions and energy efficiency, has been primarily investigated using a needle-plate electrode pair. With the increase of applied voltage, decrease of discharge gap and conductivity of solution, nitrobenzene degradation rate increases. The 12 mg·L-1 nitrobenzene solution removal rate can reach 23.1％ after discharged 60 minutes using needle-plate electrodes with a gap of 2.0 cm, an applied voltage of 45 kV and solution conductivity of 5.0 μs·cm-1.The nitrobenzene degradation is considered to be related to the hydroxyl production in the discharge process. Part of the electric energy became heat of the solution for the solution temperature increase could be detected in the experiment. Energy efficiency analysis showed that low voltage, low discharge gap and low conductivity were favorable in the degradation. An optimum G value can reach 0.175 mmol·kWh-1 with the discharge voltage of 25 kV, discharge gap of 2.0 cm and the solution conductivity of 5.0 μs·cm-1.
Pulsed high voltage discharge Advanced ozidation processes Nitrobenzene Hydrogen perozide
Yang Shidong Cui Fengguo Ma Jun
School of Civil Engineering, Northeast Dianli University, Changchun Road 169, Jilin City, 132012, P. School of Municipal & Environmental Engineering, Harbin Institute of Technology, Haihe Road 202, Har
国际会议
上海
英文
3397-3400
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）