氯苯类有机物在超声波/零价铁体系中降解特性的研究

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。

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

Using chlorobenzene compounds(CBs) such as chlorobenzene,o-dichlorobenzene,m-dichlorobenzene,p-dichlorobenzene,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 ultrasonic/zero-valent iron has good removal effect.Under the same conditions,the degradation rate constant are K1,2,4-TCB>Ko-DCB>Km-DCB>Kp-DCB>KCB,that is the more the chlorine substituent groups on the benzene ring,the easier ...