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Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation

Author

Listed:
  • Kanghee Cho

    (Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea)

  • Eunji Myung

    (Department of Energy and Resource Engineering, Chosun University, Gwangju 61452, Korea)

  • Hyunsoo Kim

    (Department of Energy and Resource Engineering, Chosun University, Gwangju 61452, Korea)

  • Oyunbileg Purev

    (Department of Energy and Resource Engineering, Chosun University, Gwangju 61452, Korea)

  • Cheonyoung Park

    (Department of Energy and Resource Engineering, Chosun University, Gwangju 61452, Korea)

  • Nagchoul Choi

    (Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea)

Abstract

In this study, we investigated the removal mechanism of total petroleum hydrocarbons (TPH) from soil by microwave heating. TPH contaminated soil was investigated to determine the desorption behavior of five carbon number-based fractions of TPH. The applied operating microwave power density influenced the final temperature that was reached during heating. For low operating power density applications, microwave effectiveness was limited due to the soil’s dielectric properties, which exhibited a direct relationship with temperature variation. Soil particle distribution could be attributed to permeability, which significantly influenced the evaporation of contaminated soil during the microwave treatment. The results indicate that the activation energy was correlated with the influence of particle size. The removal efficiency of the coarse soil reached 91.1% at 15 min, whereas that of fine soil was low. A total of 30 min had passed, and a removal efficiency of 71.2% was found for the fine soil. Residual TPH concentration was decreased when irradiation time was increased with a removal rate dependent on soil temperature variation. The surface functional groups of the contaminated soil were influenced by microwave irradiation, and changes in the hydrocarbon fraction affected contaminant removal.

Suggested Citation

  • Kanghee Cho & Eunji Myung & Hyunsoo Kim & Oyunbileg Purev & Cheonyoung Park & Nagchoul Choi, 2020. "Removal of Total Petroleum Hydrocarbons from Contaminated Soil through Microwave Irradiation," IJERPH, MDPI, vol. 17(16), pages 1-13, August.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:16:p:5952-:d:399907
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    References listed on IDEAS

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    1. Kanghee Cho & Eunji Myung & Hyunsoo Kim & Cheonyoung Park & Nagchoul Choi & Cheol Park, 2020. "Effect of Soil Washing Solutions on Simultaneous Removal of Heavy Metals and Arsenic from Contaminated Soil," IJERPH, MDPI, vol. 17(9), pages 1-13, April.
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    Cited by:

    1. Jeongjun Park & Gigwon Hong, 2022. "Simulation on the Permeability Evaluation of a Hybrid Liner for the Prevention of Contaminant Diffusion in Soils Contaminated with Total Petroleum Hydrocarbon," IJERPH, MDPI, vol. 19(20), pages 1-17, October.
    2. Md Tabish Noori & Dayakar Thatikayala & Booki Min, 2022. "Bioelectrochemical Remediation for the Removal of Petroleum Hydrocarbon Contaminants in Soil," Energies, MDPI, vol. 15(22), pages 1-22, November.

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