气液混合脉冲放电等离子体再生活性炭系统优化研究  

Optimization of regeneration process for activated carbon in a hybrid gas-liquid pulsed discharge plasma system

作　　者：王慧娟[1] 依成武[1] 刘永杰[1] 郭贺[1] 储金宇[1] 

机构地区：[1]江苏大学环境与安全工程学院,镇江212013

出　　处：《环境工程学报》2015年第7期3579-3584,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(21207052);中国博士后科学基金资助项目(20110491353);江苏省博士后科研资助计划项目(1102116C)

摘　　要：为了丰富活性炭再生方法,并拓宽脉冲放电等离子体技术的应用范围,研究建立了气液混合的脉冲放电等离子体体系,将其用于吸附酸性橙II(AO7)饱和活性炭的再生。通过实验,考察了气液混合方式、脉冲电压、脉冲频率和电极间距等关键参数对活性炭再生效果的影响规律,进而对该再生体系进行优化。研究结果表明,气液分离式的气液混合方式较利于该脉冲放电等离子体体系中活性炭的优化;在一定范围内提高脉冲电压,可以提高其中活性炭的再生效果;高的脉冲频率下活性炭再生效果好;气液混合脉冲放电等离子体体系中适宜于活性炭再生的电极间距为20mm。In order to enrich the methods for activated carbon regeneration and broaden the application of pulsed discharge plasma technology,a hybrid gas-liquid pulsed discharge plasma system was set up in this investigation to regenerate activated carbon,which was exhausted by acid orange 7.Effect of several important parameters in the system,including gas-liquid mixed mode,pulse voltage,pulse frequency and electrode distance,on regeneration efficiency of activated carbon,was reviewed to optimize the reaction condition for activated carbon regeneration.The obtained results show that the pulsed discharge plasma system with separating gas-liquid mixed mode was benefit for the regeneration process; increasing the pulse voltage within a range was favorable for the regeneration of acid orange 7 exhausted activated carbon; higher regeneration efficiency could be achieved under the condition of higher pulse frequency; a superior condition of electrode distance for the activated carbon regeneration in the pulsed discharge plasma system was 20mm.

关 键 词：脉冲放电等离子体 气液混合 活性炭 再生 酸性橙 

分 类 号：X788[环境科学与工程—环境工程]