采用焦亚硫酸盐/过二硫酸盐体系去除水中卡马西平的研究  

Study on the Removal of Carbamazepine from Water by Pyrosulfite/Persulfate System

作　　者：谢枝灿 Xie Zhican(College of Architecture and Environment of Sichuan University,Chengdu 610065,Sichuan,China)

机构地区：[1]四川大学建筑与环境学院,四川成都610065

出　　处：《四川化工》2021年第1期55-59,共5页Sichuan Chemical Industry

摘　　要：为了去除水生环境中的新兴污染物卡马西平(CBZ),构建了焦亚硫酸盐耦合过二硫酸盐(K_(2)S_(2)O_(5)/PDS)的均相催化体系。经过参数优化得到最佳工艺条件为:K_(2)S_(2)O_(5)的浓度为3 mM、PDS的浓度为5 mM、初始pH值为3.5、反应温度为25℃。在该条件下反应120 min后2 ppm CBZ的去除率超过了95%,相比较于对照实验组(单独K_(2)S_(2)O_(5)、单独PDS),K_(2)S_(2)O_(5)/PDS体系表现出明显的优越性,这主要是因为K_(2)S_(2)O_(5)与PDS之间存在有很强的协同作用。因此,K_(2)S_(2)O_(5)/PDS体系用于处理水环境中微污染物有着较大的研究前景。In order to remove carbamazepine(CBZ)in aquatic environment,a homogeneous catalytic system of pyrosulfite coupled with peroxodisulfate(K_(2)S_(2)O_(5)/PDS)was constructed.The optimum process conditions are as follows:K_(2)S_(2)O_(5) concentration is 3 mM,PDS concentration is 5 mM,initial pH value is 3.5,and reaction temperature is 25℃.Under these conditions,the removal rate of 2 ppm CBZ was over 95%after reaction for 120 min.Compared with the control experimental group(K_(2)S_(2)O_(5) alone and PDS alone),K_(2)S_(2)O_(5)/PDS system showed obvious advantages,which was mainly due to the strong synergistic effect between K_(2)S_(2)O_(5) and PDS.Therefore,K_(2)S_(2)O_(5)/PDS system has great research prospects for treating micro-pollutants in water environment.

关 键 词：焦亚硫酸盐 过二硫酸盐 卡马西平 自由基体系 

分 类 号：X703[环境科学与工程—环境工程]