In-situ quantification of aerobic reactive transport processes using spectral induced polarization (SIP)

01.03.2021 bis 30.04.2024

The project aims to deploy point-scale spectral induced polarization (SIP) electrode arrays that can measure subsurface electrical properties in situ, to quantify the activation of microbes as they catalyze biogeochemical turnover where electron acceptors and donors mix. The study will focus on reactions under aerobic conditions,. and tackle the current challenge surrounding the transferability of laboratory-based SIP measurements to field settings. Point-scale SIP electrode arrays will be deployed in the field and tested under imposed biostimulating conditions via the injection of reactants under controlled flow conditions (e.g., push-pull). The project will integrate SIP datasets into the development, validation and calibration of reactive transport models at the field scale.