超声-Fenton工艺处理炼油碱渣废水的研究  

STUDY ON TREATING REFINING ALKALINE WASTE BY ULTRASOUND-FENTON REAGENT PROCESS

作　　者：王广鹏[1] 曾凡亮[2] 魏鑫[1] 颜家保[1] 

机构地区：[1]武汉科技大学,武汉430081 [2]中国石化武汉分公司

出　　处：《石油炼制与化工》2012年第3期83-87,共5页Petroleum Processing and Petrochemicals

基　　金：湖北省教育厅产学研重点项目(CXY2009B002);武汉市供需对接项目(200951624497)

摘　　要：采用超声-Fenton工艺处理炼油碱渣废水,探讨反应时间、n(H2O2)/n(Fe2+)、H2O2浓度、初始pH值以及超声波功率等因素对炼油碱渣废水中酚和COD去除率的影响。研究结果表明,在反应温度为30℃、超声波频率为25kHz时,超声-Fenton工艺处理碱渣废水的最佳工艺条件为:反应时间60min、n(H2O2)/n(Fe2+)=30、H2O2浓度293.7mmol/L、pH值4.0、功率900W,此时酚和COD的去除率分别达到87.4%和42.2%。此法的处理效果明显优于单一超声法和单一Fenton法。Factors influencing the ultrasound-Fenton combined process for treating alkaline waste of refinery were investigated including the effects of n（H2O2）/n（Fe2＋）,H2O2 concentration,initial system pH value and ultrasonic frequency on the removal rates of phenol and COD.Test results showed that at constant reaction temperature of 30 ℃ and ultrasonic frequency of 25 kHz,under the optimum process conditions of a n（H2O2）/n（Fe2＋） of 30,H2O2 concentration of 293.7 mmol/L,initial system pH value of 4.0,an ultrasonic power of 900 W and a reaction time of 60 min,the removal rate of phenol and COD by this combined process reached 87.4% and 42.2%,respectively.Treatment by this combined process was much better than that of by single ultrasound method or single Fenton oxidation.

关 键 词：碱渣 FENTON试剂 超声波 反应动力学 

分 类 号：X742[环境科学与工程—环境工程]