Zhao Baowei, Zhou Yi, Zhao Yi. Study on dechlorination of chlorinated phenols by ultrasound and zero valent iron[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1973-1976.
Citation: Zhao Baowei, Zhou Yi, Zhao Yi. Study on dechlorination of chlorinated phenols by ultrasound and zero valent iron[J]. Chinese Journal of Environmental Engineering, 2009, 3(11): 1973-1976.

Study on dechlorination of chlorinated phenols by ultrasound and zero valent iron

  • Received Date: 01/12/2008
    Accepted Date: 12/11/2008
    Fund Project:
  • In this paper, the dechlorination of 3-chlorophenol (CP), 2, 4-dichlorophenol (DCP) and 2, 4, 6-trichlorophenol (TCP) by ultrasound (US) and zero valent iron (Fe0) was investigated. The influences of iron addition, power of ultrasound, initial concentration of phenols and pH values of solution on dechlorination efficiency were tested and the kinetics of dechlorination was discussed. It was shown that the dechlorination by US/Fe0 was significant in general. When the initial concentration of phenols was 25 mg/L, the pH values of solution was weak acid, and the power of ultrasound was 200 W, the efficiency of dechlorination was up to the biggest value. The dechlorination reaction was a pseudofirst-order reaction and the rate constants were 0.0613 h-1, 0.374 h-11 and 0.197 h-1 for CP, DCP and TCP, respectively.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study on dechlorination of chlorinated phenols by ultrasound and zero valent iron

Fund Project:

Abstract: In this paper, the dechlorination of 3-chlorophenol (CP), 2, 4-dichlorophenol (DCP) and 2, 4, 6-trichlorophenol (TCP) by ultrasound (US) and zero valent iron (Fe0) was investigated. The influences of iron addition, power of ultrasound, initial concentration of phenols and pH values of solution on dechlorination efficiency were tested and the kinetics of dechlorination was discussed. It was shown that the dechlorination by US/Fe0 was significant in general. When the initial concentration of phenols was 25 mg/L, the pH values of solution was weak acid, and the power of ultrasound was 200 W, the efficiency of dechlorination was up to the biggest value. The dechlorination reaction was a pseudofirst-order reaction and the rate constants were 0.0613 h-1, 0.374 h-11 and 0.197 h-1 for CP, DCP and TCP, respectively.

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