微秒脉冲介质阻挡放电处理绝缘油污染土壤实验研究  

Experimental study of microsecond pulse dielectric barrier discharge processing on insulating oil contaminated soil

作　　者：陈传敏 冯荣荣 贾文波 郁金星 宋国升 刘松涛 CHEN Chuan-min;FENG Rong-rong;JIA Wen-bo;YU Jin-xing;SONG Guo-sheng;LIU Song-tao(Department of Environmental Science and Engineering,North China Electric Power University (Baoding),Baoding 071003,China;Electric Power Research Institute of State Grid Hebei ElectricPower Co.,Ltd.,Shijiazhuang 050021,China)

机构地区：[1]华北电力大学(保定)环境科学与工程系,河北保定071003 [2]国网河北省电力有限公司电力科学研究院,河北石家庄050021

出　　处：《应用化工》2021年第11期2941-2945,共5页Applied Chemical Industry

基　　金：国家重点研发计划项目(2019YFC1805600);国家电网公司科技项目(5204DY19000A)。

摘　　要：研究微秒脉冲介质阻挡放电技术对污染土壤中污染物的去除性能的影响,以绝缘油为目标污染物,考察了处理时间、污染物初始浓度、含水率、土壤厚度、载气流速对绝缘油去除率的影响。结果表明,土壤中绝缘油的去除率随着时间的增加逐渐升高;土壤中污染物初始浓度和土壤厚度的增加对绝缘油的去除起抑制作用;含水率为15%时,绝缘油的去除效果达到最佳;过高的载气流速不利于活性物质与绝缘油反应,降低了绝缘油的降解效果。采用微秒脉冲介质阻挡放电技术对绝缘油污染土壤进行处理,取得了良好的修复效果,表现出高效的能量利用率,为该技术进行有机污染物修复提供借鉴。In order to study the removal performance of pollutants in contaminated soil by microsecond pulsed dielectric barrier discharge technology,the effects of treatment time,initial concentration of pollutants,soil moisture content,soil thickness and carrier gas flow rate on the removal rate of insulating oil were investigated.The removal rate of insulating oil in soil increases with the increase of treatment time;The initial concentration of pollutants in soil and the increase of soil thickness inhibit the removal of insulating oil;When the water content in soil is 15%,the optimum removal effect of insulating oil is reached;Excessive carrier gas flow rate is not conducive to the reaction between active substances and insulating oil,which reduces the degradation effect of insulating oil.Using the microsecond pulsed dielectric barrier discharge technology to treat the soil polluted by insulating oil could achieve good remediation effect and high energy utilization efficiency,which provides a reference for the remediation of organic pollutants by this technology.

关 键 词：等离子体 绝缘油 有机污染土壤 去除率 

分 类 号：TQ9[化学工程] X53[环境科学与工程—环境工程]