超声/Fenton试剂氧化耦合处理染料废水

彭晓云;冯流;刘路

北京化工大学学报(自然科学版) ›› 2007, Vol. 34 ›› Issue (2) : 122-125.

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北京化工大学学报(自然科学版) ›› 2007, Vol. 34 ›› Issue (2) : 122-125.
研究论文

超声/Fenton试剂氧化耦合处理染料废水

  • 彭晓云;冯流;刘路
作者信息 +

Synergistic degradation of dyeing wastewater by the ultrasound/Fenton method

  • PENG XiaoYun;FENG Liu;LIU Lu
Author information +
文章历史 +

摘要

采用超声/Fenton试剂氧化耦合的方法对模拟染料废水活性红2进行降解处理研究。实验结果表明,仅用超声处理降解率为5%左右,仅用Fenton试剂处理降解率为45%左右,而两者联合
处理降解率可达90%以上。超声/Fenton试剂耦合法明显优于二者的简单叠加,此反应符合二
级反应动力学方程。同时探讨了超声功率、溶液初始pH值、Fe2+和H2O2投加量等因素对活性红2降解的影响。结果表明,溶液pH值对降解率影响显著,低pH值有利于降解。降解率分别随超声功率和FeSO4投加量的升高而升高,但当FeSO4浓度大于0.045mmol/L时,降解率增大趋势不明显。而H2O2则存在一个最佳投加量。

Abstract

Degradation of simulated Reactive Red 2 (RR2) wastewater by ultrasonic technology, Fenton reagent oxidation, and a combination of the two processes was studied.It was found that extent of degradation by ultrasonic technology or Fenton reagent oxidation alone was poor, with values of 5% and 45% respectively. The extentof degradation was significantly enhanced when the two processes were combined,with a value of up to 90%, which shows that these two processes have a good synergistic effect. The degradation of RR2 by the combined processes can be described by a second-order kinetics model. The effect of varying factors such as ultrasonic power, pH, and concentration of Fe2+ and H2O2 on the degradation of RR2 was investigated. The results showed that the degradation extent is strongly pH dependent and increases with decreasing pH. The extent of degradation was found to increase with increasing ultrasonic power and FeSO4 concentration below 0.045mmol/L. Furthermore, it was found that there is an optimal intermediate H2O2 concentration for effective RR2 degradation.

引用本文

导出引用
彭晓云;冯流;刘路. 超声/Fenton试剂氧化耦合处理染料废水[J]. 北京化工大学学报(自然科学版), 2007, 34(2): 122-125
PENG XiaoYun;FENG Liu;LIU Lu. Synergistic degradation of dyeing wastewater by the ultrasound/Fenton method[J]. Journal of Beijing University of Chemical Technology, 2007, 34(2): 122-125

参考文献

[1]刘冬莲. 染料废水处理方法的研究进展[J]. 河南化工, 2004(12):5-7.
[2]TEZCANLIGUYER G,INCE N H.Degradation and toxicity reduction of textile dyestuff by ultrasound[J].Ultrasonics Sonochemistry,2003,10(4-5):235-240.
[3]REHOREK A,TAUBER M,GUBITZ G. Application of power ultrasound for azo dye degradation[J]. Ultrasonics Sonochemistry,2004,11(3-4):177-182.
[4]GOEL M, HU H, ARUN S M, et al. Sonochemical decomposition of volatile an
d non-volatile organic compounds-a comparative study[J]. Water Research
, 2004,38(19): 4247-4261.
[5]郭照冰,郑正,袁守军,等. 超声与其他技术联合在废水处理中的应用[J]. 工业
水处理,2003,23(7):8-12.
[6]BONGBEEN Y, HIROSHI O,YOSHIO N,et al. Sonochemical degradation of chlorinated hydrocarbons using a batch and continuous flow system[J]. Journal of Hazardous Materials,2001,81(3):253-263.
[7]MERIC S,SELCUK H,GALLO M, et al. Decolourisation and detoxifying of remazol red dye and its mixture using Fenton's reagent[J]. Desalination,2005,173(3):239-248.
[8]LIN JihGaw,MA YingShih. Oxidation of 2-chlorophenol in water by ult
rasound/Fenton method[J]. Journal of Environmental Engineering,2000,126(2):130-137.
[9]TANG W Z,CHEN R Z. Decolorization kinetics and mechanisms of commercial dyes by H2O2/iron powder system[J].Chemosphere,1996,32(5):947-958.

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