This paper,taking OCDF and 1 2378-PeCDF as example,explores the sponge iron reduction degrada-tion dioxin de-chlorination method as well as a comparison of ultrasound,sponge iron+ultrasound,sponge iron/Ag+ultrasonic three treatments dioxin experimental methods.And Optimization sponge/Ag+ultrasonic treatment conditions,concentration of dioxins treatment,sponge iron dosage and time ultrasound conditions were optimized to explore the sponge method of dioxin treatment.Experimental results show that the sponge iron/Ag+ultrasound sys-tem conditions can not restore degraded de-chlorination of dioxins,which needs further inquiry.%以OCDF和12378-PeCDF为例,探究了海绵铁脱氯还原降解二英的方法。对比了超声、海绵铁+超声、海绵铁/银+超声三种处理二英的实验方法,并对海绵铁/银+超声处理方法中二英浓度、海绵铁投加量以及超声时间等条件进行了优化,探索海绵铁处理二英的方法。实验结果表明,在海绵铁/银+超声的体系条件下还不能脱氯还原降解二英,还需要做进一步深入的探究。
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