Reactive Transport Modeling of Thermal Column Experiments to Investigate the Impacts of Aquifer Thermal Energy Storage on Groundwater Quality

M. Bonte, P.J. Stuijfzand, B.M. van Breukelen

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    Aquifer thermal energy storage (ATES) systems are increasingly being used to acclimatize buildings and are often constructed in aquifers used for drinking water supply. This raises the question of potential groundwater quality impact. Here, we use laboratory column experiments to develop and calibrate a reactive transport model (PHREEQC) simulating the thermally induced (5-60 °C) water quality changes in anoxic sandy sediments. Temperature-dependent surface complexation, cation-exchange, and kinetic dissolution of K-feldspar were included in the model. Optimization results combined with an extensive literature survey showed surface complexation of (oxy)anions (As, B, and PO
    Original languageEnglish
    Pages (from-to)12099-12107
    JournalEnvironmental Science and Technology
    Volume48
    Issue number20
    DOIs
    Publication statusPublished - 2014

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