催化臭氧氧化处理对氯苯酚的研究  

Removal of p-chlorophenol by ozone with M/ACF catalysts

作　　者：陈哲铭[1] 陈丽燕 刘秀艳[3] 方士[4] 

机构地区：[1]浙江省环境保护科学设计研究院,浙江杭州310007 [2]嘉兴市联合污水处理有限责任公司,浙江嘉兴314001 [3]杭州电子科技大学环境科学系,浙江杭州310018 [4]浙江大学环境保护研究所,浙江杭州310029

出　　处：《环境污染与防治》2007年第6期443-445,共3页Environmental Pollution & Control

摘　　要：采用臭氧氧化法处理对氯苯酚溶液,研究了pH、温度、气体流量和对氯苯酚初始浓度等因素对处理效果的影响。反应体系pH越高,越有利于氧化反应。用自制的载有Fe、Co、Mn氧化物的活性炭纤维(ACF)催化剂进行催化臭氧氧化对氯苯酚的实验。结果表明,Fe/ACF显示了较好的催化性能和活性。通过在反应体系中加入一定量的羟基自由基猝灭剂,初步探讨了其催化机理,即催化剂和臭氧反应生成了氧化性极强的羟基自由基。Removal of p-chlorophenol （PCP） by ozone oxidation in the presence of metal coated activated carbon fiber （M/ACF） was studied to determine the effects of M/ACF catalyst, pH, temperature, initial concentration, and ozone-oxygen feed rate. The PCP removal rate increased with increasing pH, temperature, and gaseous feed rates the removal rate declined at a higher initial PCP concentration when the availability of ozone might have become the limiting factor. The presence of M/ACF significantly enhanced the PCP removal, Fe was the most effective metal catalyst, followed by Mn, Co. The enhancement was likely due to the highly reactive hydroxyl radicals produced by catalytic oxidation.

关 键 词：金属氧化物/活性炭纤维 催化臭氧氧化 羟基自由基 对氯苯酚 催化机理 

分 类 号：X703[环境科学与工程—环境工程]