氯苯类有机物在超声波/零价铁体系中降解特性的研究  

Study on the degradation characteristics of chlorobenzenes organic compounds in the ultrasonic/zero-valent iron system

作　　者：曹世晖[1] 

机构地区：[1]湖南城建职业技术学院,湖南湘潭411103

出　　处：《化学工业与工程技术》2011年第4期16-20,共5页Journal of Chemical Industry & Engineering

摘　　要：以氯苯、邻二氯苯、间二氯苯、对二氯苯、1,2,4-三氯苯等氯苯类化合物(CBs)为目标污染物,研究了CBs在超声波/零价铁联合体系中(US/Fe0)的降解特性。结果表明,用超声波协同零价铁降解氯苯类有机物具有很好的去除效果,在同一条件下,降解速率常数依次为:K1,2,4-TCB>Ko-DCB>Km-DCB>Kp-DCB>KCB,即苯环上的氯取代基越多,降解越容易,氯苯类有机物的反应属于准一级反应。Using chlorobenzene compounds （CBs） such as chlorobenzene, o-dichlorobenzene, m-dichlorobenzene, p-dichloro benzene, 1, 2, 4-trichlorobenzene as target pollutants, the degradation characteristics of CBs in the ultrasonic/zero-valent iron system are studied. The results show that the system of ultrasonie/zero-valent iron has good removal effect. Under the same conditions, the degradation rate constant are K1,2.4-TTCB〉 Ko-DCB〉Km-DCB〉Kp-DCB〉KCB, that is the more the chlorine substituent groups on the benzene ring, the easier the degradation is. The degradation of chlorobenzene conpounds is first order reaction.

关 键 词：超声波/零价铁 氯苯类有机物 降解特性 

分 类 号：X703[环境科学与工程—环境工程]