高压脉冲电场中填充活性氧化铝催化降解水中有机污染物  

Catalytic Degradation of Organic Pollutants by Packing Activated Alumina in High Voltage Pulsed Discharge Electric Field

作　　者：朱丽楠[1] 郜冶[1] 马军[2] 王永军 任芝军 刘桂芳[1] 

机构地区：[1]哈尔滨工程大学航天与建筑工程学院,哈尔滨150001 [2]哈尔滨工业大学市政与环境工程学院,哈尔滨150090

出　　处：《高电压技术》2010年第2期461-466,共6页High Voltage Engineering

基　　金：高等学校科技创新工程重大项目培育资金项目(705013);黑龙江省博士后基金(LBH-Z08218)~~

摘　　要：为了能够进一步提高脉冲高压放电过程对于水中有机物的去除效果,考察了在放电反应器内添加活性氧化铝和玻璃珠颗粒后对于水中苯酚的降解效果。这些颗粒催化剂被待处理苯酚溶液淹没,并在反应器内通入气体。实验结果表明在不同的放电电压下添加了活性氧化铝后,苯酚的去除率都有所提高,并且随着电压的增加,苯酚的去除率逐渐增加。在反应器内通入氧气后,苯酚的降解率明显上升。在放电电极之间添加了活性氧化铝颗粒之后,催化降解了更多的苯酚,并且改善了电极之间的放电条件,减少了能量损失,提高了能量利用效率。To increase the removal rate of organic substance in high voltage discharge process,activated alumina and beading were added between the electrodes with gas aeration in the submerged flow state.The removal rate of phenol increased with adding activated alumina and increasing the applied voltage.Oxygen flowing into the discharge region would promote the removal of phenol obviously.The polarization was more intense with activated alumina filled in the reactor,so more reactive species would be produced.Nevertheless,the enhanced electric field was unconspicuous with beading.The energy consumption of discharge between the electrodes by adding activated alumina was less than discharge in bubbles.The phenol degradation and the discharge condition could be improved by adding activated alumina between the discharge electrodes,which reduced the energy consumption and increased the energy utilization efficiency.

关 键 词：高压脉冲电场 填充床 活性氧化铝 苯酚 气泡 能耗 

分 类 号：X703[环境科学与工程—环境工程] TM89[电气工程—高电压与绝缘技术]