介质阻挡放电与活性炭纤维协同去除水中的3,4-二氯苯胺  

DEGRADATION OF 3,4-DICHLOROANILINE BY SIMULTANEOUS USE OF DIELETRIC BARRIER DISCHARGE AND ACTIVATED CARBON FIBER

作　　者：王正芳[1] 王卫平[1,2] 郑正[3] 罗兴章[1] 张继彪[1] 胡海龙[3] 

机构地区：[1]污染控制与资源化研究国家重点实验室,南京大学环境学院,南京210093 [2]南京东大苏威能源环保工程有限公司,南京东大能源工程设计院有限公司,南京210018 [3]复旦大学环境科学与工程系,上海200433

出　　处：《环境化学》2011年第5期1000-1005,共6页Environmental Chemistry

基　　金：水体污染控制与治理科技重大专项课题(No.2008ZX07101-004)资助

摘　　要：采用介质阻挡放电(DBD)非平衡等离子体与活性炭纤维(ACF)相联合的方法去除水中3,4-二氯苯胺(3,4-DCA),考察了放电功率、空气流量、溶液初始浓度、电导率、pH值以及活性炭纤维用量等因素对联合处理效率的影响,并分析了可能的去除机理.实验结果表明,在DBD非平衡等离子体与ACF联合处理有机污染物3,4-DCA的过程中表现出了较好的协同效应,不仅对3,4-DCA具有较高的去除率,同时还可以实现ACF的原位再生.在3,4-DCA初始浓度为15 mg·L-1,pH值为3.82,放电功率为80 W,空气流量为1 L·min-1,ACF用量为0.4 g·L-1的条件下,放电处理20 min后,3,4-DCA的去除率可达92.37%.This study reports an enhancement in the removal of 3,4-DCA in aqueous solution by simultaneous use of dielectric barrier discharge and activated carbon fiber.The effects of discharge power,air flow rate,initial concentration,electrical conductivity,pH and ACF dose on the removal efficiency of 3,4-DCA were tested and possible decomposition mechanism was analyzed.The experimental results showed that the combination of dielectric barrier discharge and ACF has synergistic effect and has a favorable removal efficiency on 3,4-DCA.At the same time,ACF was regenerated in-situ by the pulsed discharge process.About 92.37% removal rate was achieved after 20 min decomposition with 15 mg · L-1 initial concentration（pH=3.82）,80 W discharge power,1 L · min-1 air flow rate and 0.4 g · L-1 ACF dose.

关 键 词：介质阻挡放电 活性炭纤维 3 4-二氯苯胺 去除率 

分 类 号：X13[环境科学与工程—环境科学]