H. A. Moreno C., D. L. Cocke
Electrocoagulation (EC) has been an established method for water and wastewater treatment for over a century, particularly known for the removal of metals, non-metals, suspended solids, and organic compounds. Despite its long history, the electrochemical mechanisms at play with iron electrodes in EC processes remain inadequately explored. The objective of this study is to provide a comprehensive review of the electrochemical reactions involved when utilizing iron electrodes in EC. We conducted experimental measurements of pH in various zones surrounding the iron electrodes during the EC process, which were essential in elucidating the associated mechanisms and reactions at both the anode and cathode. The findings reveal that the processes involving iron electrodes generate crucial coagulant species in situ, promoting the removal of contaminants while concurrently producing hydrogen gas. Furthermore, our results align with existing theories regarding solubility and Pourbaix diagrams, providing a clearer understanding of the underlying electrochemical phenomena. Hence, this review not only highlights the efficiency and practicality of using iron electrodes over aluminum but also enriches the current literature by systematically detailing the electrochemical actions that facilitate effective wastewater treatment through EC.
@article{9eb56e18-9535-45ff-8868-ed59ba8b18a9,
title={Electrochemistry behind Electrocoagulation using Iron Electrodes},
author={H. A. Moreno C. and D. L. Cocke},
year={2007},
language={en}
}TY - JOUR TI - Electrochemistry behind Electrocoagulation using Iron Electrodes AU - H. A. Moreno C. AU - D. L. Cocke PY - 2007 LA - en ER -
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