Water Treatment Using Metallic Iron: A Tutorial Review
Water Treatment Using Metallic Iron
Source : https://www.mdpi.com/journal/processes
Author : Rui Hu , Willis Gwenzi , Viviane Raïssa Sipowo-Tala and Chicgoua Noubactep
Abstract: Researchers and engineers using metallic iron (Fe0) for water treatment need a tutorial review on the operating mode of the Fe/H2O system. There are few review articles attempting to present systematic information to guide proper material selection and application conditions. However, they are full of conflicting reports. This review seeks to: (i) Summarize the state-of-the-art knowledge on the remediation Fe/H2O system, (ii) discuss relevant contaminant removal mechanisms, and (iii) provide solutions for practical engineering application of Fe-based systems for water treatment. Specifically, the following aspects are summarized and discussed in detail: (i) Fe intrinsic reactivity and material selection, (ii) main abiotic contaminant removal mechanisms, and (iii) relevance of biological and bio-chemical processes in the Fe/H2O system. In addition, challenges for the design of the next generation Fe/H2O systems are discussed. This paper serves as a handout to enable better practical engineering applications for environmental remediation using Fe.
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