脉冲电晕放电处理含酚废水的工艺优化  

Study on Optimization Process of Containing Phenol Wastewater Treatment with Pulse Corona

作　　者：刘成伦[1] 杨玉玲[1] 

机构地区：[1]重庆大学化学化工学院

出　　处：《压电与声光》2006年第5期609-612,共4页Piezoelectrics & Acoustooptics

基　　金：重庆市科技计划攻关资助项目(CSTC;2004AD7027)

摘　　要：通过对废水水质指标的综合评判，获得了电极布置方式、放电时间与放电次数的最优化方案：在0～60min、苯酚初始浓度较高阶段，宜采用正向连接电极方式连续放电；在60～90min、低浓度区，采用反接电极方式间隔放电。研究还表明，正向连接电极在高浓度区内化学需氧量（COD）的变化速度幅度较大，反接电极在低浓度区内COD降低效果较明显；氢氧化钠的加入可缓解溶液电导率的增加；废水溶液的5天的生化需氧量与化学需氧量之比（BOD5／COD）呈现明显的抛物线变化趋势。The optimization process is obtained after analyzing the quality items of wastewater. It is concluded that electrode arrangement way is the way of stainless steel awl and plane iron. Continuous discharging is of benefit to destruction in former 0-60 min when the concentration of phenol solution is high, and discharging at regular intervals is more effective to the decrease of Chemical Oxygen Demand（COD） in 60-90 min when the concentration of the solution is low. Moreover, the changing trend of COD in the solution is steep in former procedure for the awl electrode anode. The decrease degree of COD is obvious for the awl electrode cathode in later procedure. In addition, it is helpful to prevent the increase of conductivity when NaOH is added into the solution. The curve of Biochemical Oxygen Demand ：Chemical Oxygen Demand （BOD5/COD） vs. time is a parabola.

关 键 词：电晕放电 含酚废水 电极连接 工艺优化 

分 类 号：X703[环境科学与工程—环境工程]