Volume 7 Issue 1
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Article Navigation >  Journal of Environmental Engineering Technology  > 2017  >  7(1): 65-70
ZHANG Qiuzi, WEI Yunxiao, JIANG Yonghai, WEI Xiaofei, WANG Fuwang. Oxidizing capacity of catalyzed hydrogen peroxide to petroleum hydrocarbon contaminated soil[J]. Journal of Environmental Engineering Technology, 2017, 7(1): 65-70. doi: 10.3969/j.issn.1674-991X.2017.01.010
Citation: ZHANG Qiuzi, WEI Yunxiao, JIANG Yonghai, WEI Xiaofei, WANG Fuwang. Oxidizing capacity of catalyzed hydrogen peroxide to petroleum hydrocarbon contaminated soil[J]. Journal of Environmental Engineering Technology, 2017, 7(1): 65-70. doi: 10.3969/j.issn.1674-991X.2017.01.010
shu

Oxidizing capacity of catalyzed hydrogen peroxide to petroleum hydrocarbon contaminated soil

doi: 10.3969/j.issn.1674-991X.2017.01.010
  • 1.

    Beijing Construction Engineering Group Environmental Remediation Co., Ltd., Beijing 100015, China

  • 2.

    Chinese Research Academy of Environmental Sciences, Beijing 100012, China

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  • Corresponding author: Yunxiao WEI E-mail: weiyunxiao@bceer.com
  • Received Date: 2016-06-03
  • Publish Date: 2017-01-20
    Abstract
  • Regarding to the petroleum hydrocarbon polluted sites that are remediated with H2O2 based ex-situ chemical oxidation, the oxidizing capacity and reactive process of catalyzed H2O2 were studied with different H2O2 mass fractions and oxidant to catalyst/stabilizer ratios. It is found that hydroxyl radical and superoxide anion are the major oxidation groups. The H2O2 mass fraction of 0.50%-1.00% and the oxidant to catalyst/stabilizer ratio of 75∶1-100∶1 provide higher total petroleum hydrocarbon (TPH) degradation rate. The results demonstrated that high H2O2 concentration and low oxidant to catalyst/stabilizer ratio may lead to rapid H2O2 decomposition that reduce the contact time between oxidant and contaminant and decrease the oxidizing efficiency. In addition, it is also found when H2O2 is under rapid decomposition, it tends to oxidize hydrocarbon molecules with less carbon number.

     

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