活性炭活化过硫酸盐选择降解含氯有机物的研究  

Study on The Selective Degradation of Chlorinated Organic Compounds by Activated Carbon Activated Persulfate

作　　者：姚晨辉 朱金远 张永清 刘浔 罗丽丽 Yao Chenhui;Zhu Jinyuan;Zhang Yongqing;Liu Xun;Luo Lili(School of Energy and Environment,South China University of Technology,Guangzhou 510000;Guangdong Ziyuan Environmental Protection Co.,Ltd.,Meizhou 514977,China)

机构地区：[1]华南理工大学环境与能源学院,广东广州510000 [2]广东自远环保股份有限公司,广东梅州514799

出　　处：《广东化工》2021年第20期153-154,164,共3页Guangdong Chemical Industry

基　　金：广东自然科学基金(2019A1515011761)。

摘　　要：通过比较不同类型的含氯有机物在过硫酸盐(PS)/活性炭(AC)体系中的降解率,考察了苯环上氯原子和苯环上带有的官能团对于PS/AC体系降解含氯有机物的影响。结果表明,在PS/AC体系中,氯酚的去除效果受pH影响较大;PS/AC体系对污染物的氧化附带脱氯的效果,脱除的氯离子可被体系中的单线态氧氧化为自由基,加成到剩余有机物上,削弱了脱氯效果,不利于污染物的降解;PS/AC体系对含富电子基团的污染物有较高的选择性。By comparing the degradation rates of different types of chlorinated organic compounds in the system of persulfate(PS)/activated carbon(AC),the effects of chlorine atoms and functional groups on the degradation of chlorinated organic compounds in the system of PS/AC were investigated.The results show that in PS/AC system,the removal efficiency on chlorophenol is greatly affected by pH.The oxidation of pollutants by PS/AC system also has the effect of dechlorination.The removed chloride ions can be oxidized to free radicals by the singlet oxygen in the system,and added to the remaining organic matter,which weakens the dechlorination effect and is not conducive to the degradation of pollutants.PS/AC system has high selectivity to pollutants with electron rich functional groups.

关 键 词：活性炭 过硫酸盐 含氯有机物 选择性去除 单线态氧 

分 类 号：TQ[化学工程]