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Prediction of 1,4-Dioxane Migration in Groundwater and Evaluation of Remediation Measures in an Illegal Dumping Site Using a 2D-Numerical Model

Author

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  • Thatthep Pongritsakda

    (Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai 9808570, Japan)

  • Yasuhide Sakamoto

    (National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 3058560, Japan)

  • Jiajie Wang

    (Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai 9808570, Japan)

  • Yoshishige Kawabe

    (National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 3058560, Japan)

  • Sanya Sirivithayapakorn

    (Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand)

  • Takeshi Komai

    (Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai 9808570, Japan)

  • Noriaki Watanabe

    (Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai 9808570, Japan)

Abstract

Illegal dumping sites are usually characterized by complex contamination situations due to the presence of multiple contamination sources. To improve the efficiency of illegal waste dumping site remediation, this study developed a numerical model considering the effects of groundwater levels and hydraulic gradient changes on remediation operations. Using this model, the most likely sources of contamination for 1,4-dioxane at an illegal waste site in Iwate Prefecture, Japan, were successfully identified (including location, amount, and time of occurrence) by reproducing historical monitoring data (from 2010 to 2022) through history matching, and future contaminant migration in groundwater was predicted. In addition, based on quantitative evaluations of the remediation measures, we found that some remediation measures, such as impermeable wall construction, while having some effects on the control of contamination spreading, may accelerate the migration of contaminants off-site due to the change of hydraulic gradient. Therefore, remediation procedures should be more carefully considered for illegal dumping sites based on an understanding of the distribution of contamination sources and hydraulic gradient evolutions.

Suggested Citation

  • Thatthep Pongritsakda & Yasuhide Sakamoto & Jiajie Wang & Yoshishige Kawabe & Sanya Sirivithayapakorn & Takeshi Komai & Noriaki Watanabe, 2023. "Prediction of 1,4-Dioxane Migration in Groundwater and Evaluation of Remediation Measures in an Illegal Dumping Site Using a 2D-Numerical Model," Sustainability, MDPI, vol. 15(5), pages 1-31, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:3930-:d:1075922
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    References listed on IDEAS

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    1. Diogo Henrique Fernandes Paz & Kalinny Patrícia Vaz Lafayette & Maria Júlia de Oliveira Holanda & Maria do Carmo Martins Sobral & Luiz Augusto Ramos de Castro Costa, 2020. "Assessment of environmental impact risks arising from the illegal dumping of construction waste in Brazil," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(3), pages 2289-2304, March.
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