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Study of Sorption Kinetics and Sorption–Desorption Models to Assess the Transport Mechanisms of 2,4-Dichlorophenoxyacetic Acid on Volcanic Soils

Author

Listed:
  • Lizethly Cáceres-Jensen

    (Laboratorio de Fisicoquímica & Analítica (PachemLab), Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile)

  • Jorge Rodríguez-Becerra

    (Laboratorio de Fisicoquímica & Analítica (PachemLab), Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile)

  • Carlos Garrido

    (Laboratorio de Química Inorgánica, Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile)

  • Mauricio Escudey

    (Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170020, Chile
    Center for the Development of Nanoscience and Nanotechnology (CEDENNA), Santiago 9170020, Chile)

  • Lorena Barrientos

    (Centro de Investigación en Nanotecnología y Materiales Avanzados (CIEN-UC), Facultad de Química, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
    Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago 7820436, Chile)

  • Jocelyn Parra-Rivero

    (Laboratorio de Fisicoquímica & Analítica (PachemLab), Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile)

  • Valentina Domínguez-Vera

    (Laboratorio de Fisicoquímica & Analítica (PachemLab), Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile)

  • Bruno Loch-Arellano

    (Laboratorio de Fisicoquímica & Analítica (PachemLab), Departamento de Química, Facultad de Ciencias Básicas, Universidad Metropolitana de Ciencias de la Educación, Santiago 7760197, Chile
    Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile)

Abstract

The sorption behavior of 2,4-dichlorophenoxyacetic acid (2,4-D) in the abundant agricultural volcanic ash-derived soils (VADS) is not well understood despite being widely used throughout the world, causing effects to the environment and human health. The environmental behavior and risk assessment of groundwater pollution by pesticides can be evaluated through kinetic models. This study evaluated the sorption kinetics and 2,4-D sorption–desorption in ten VADS through batch sorption experiments. Differences in the sorption extent for the fast and slow phases was observed through the IPD model where 2,4-D sorption kinetics was controlled by external mass transfer and intra organic matter diffusion in Andisols ( C 1 ≠ 0). We confirmed from the spectroscopic analysis that the carboxylate group directly drives the interaction of 2,4-D on Andisol soil. The MLR model showed that I E P , F e D C B , and p H × S i l t are important soil descriptors in the 2,4-D sorption in VADS. The Freundlich model accurately represented sorption equilibrium data in all cases ( K f values between 1.1 and 24.1 µg 1−1/n mL 1/n g −1 ) with comparatively higher sorption capacity on Andisols, where the highest hysteresis was observed in soils that presented the highest and lowest O C content ( H close to 0).

Suggested Citation

  • Lizethly Cáceres-Jensen & Jorge Rodríguez-Becerra & Carlos Garrido & Mauricio Escudey & Lorena Barrientos & Jocelyn Parra-Rivero & Valentina Domínguez-Vera & Bruno Loch-Arellano, 2021. "Study of Sorption Kinetics and Sorption–Desorption Models to Assess the Transport Mechanisms of 2,4-Dichlorophenoxyacetic Acid on Volcanic Soils," IJERPH, MDPI, vol. 18(12), pages 1-18, June.
  • Handle: RePEc:gam:jijerp:v:18:y:2021:i:12:p:6264-:d:572071
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    Cited by:

    1. Bahi, Aya & Sauvage, Sabine & Payraudeau, Sylvain & Tournebize, Julien, 2023. "PESTIPOND: A descriptive model of pesticide fate in artificial ponds: I. Model development," Ecological Modelling, Elsevier, vol. 485(C).

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