摘要
采用高锰酸钾与粉末活性炭(KMnO4-PAC)联用技术去除水中三氯生(TCS),考察了PAC投加方式,PAC投加量、KMnO4投加量、pH值等因素对TCS去除的影响,并探讨联用工艺降解TCS的机理.结果表明:KMnO4与PAC同时投加时,TCS去除率可达到99.7%,TCS去除率随着PAC投加量的增加而升高,随KMnO4投加量的增加先升高、后降低、再升高,偏碱性条件有利于TCS的去除,腐植酸对TCS的去除起促进作用.GC/MS分析表明:2,4-二氯苯酚(2,4-DCP)为KMnO4氧化TCS的主要产物.
Combining potassium permanganate and powder activated carbon （PAC） was used to remove triclosan in the water.The effects of potassium permanganate dosage,PAC dosage,PAC process,pH and so on were under investigated,and the eliminate mechanism was researched as well.The results showed that TCS was effectively removed by combining potassium permanganate and PAC,and the removal rate of TCS could reach 99.7 %.The removal rate of TCS increased with the increasing of PAC dosage.The removal rate of TCS increased at first,and increased again after a fall with the increasing dosage of potassium permanganate.The removal rate of TCS increased in alkalinity,and increased when HA was added.The major oxidate was tentatively identified as 2,4-dichlorophenol （2,4-DCP）,a bond cleavage product of TCS,under a GC/MS analyse.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第6期100-105,共6页
Journal of Fujian Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(51008261
51208468)
福建省自然科学基金资助项目(2013J01212)
厦门市科技局资助项目(3502Z20131157)
厦门理工学院杰出青年科研人才培育计划资助项目(JA11227)
