石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (3): 83-87.

• 节能减排 • 上一篇    下一篇

超声-Fenton工艺处理炼油碱渣废水的研究

王广鹏1,曾凡亮2,魏鑫1,颜家保1   

  1. 1. 武汉科技大学
    2. 中国石化武汉股份有限责任公司
  • 收稿日期:2011-07-06 修回日期:2011-09-27 出版日期:2012-03-12 发布日期:2012-02-28
  • 通讯作者: 王广鹏 E-mail:wgp8818@126.com
  • 基金资助:
    湖北省教育厅产学研重点项目

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

  • Received:2011-07-06 Revised:2011-09-27 Online:2012-03-12 Published:2012-02-28

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,在固定反应温度为30 ℃、超声波频率为25 kHz时,超声-Fenton工艺处理碱渣废水的最佳工艺条件为:反应时间为60 min、n(H2O2)/n(Fe2+)为30、H2O2浓度为293.7 mmol/L、pH值为4.0、功率为900 W,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氧化法。

关键词: 碱渣, Fenton试剂, 超声波, 反应动力学

Abstract: 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.

Key words: alkaline waste, Fenton reagent, ultrasound, reaction kinetics

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