Metallic Iron for Water Treatment: A Critical Review |
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| Authors: | Chicgoua Noubactep |
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| Institution: | 1. Angewandte Geologie, Universit?t G?ttingen, G?ttingen, Germany;2. Kultur und Nachhaltige Entwicklung CDD e.V., G?ttingen, Germany |
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| Abstract: | Water treatment with metallic iron (Fe0) is still based on the premise that Fe0 is a reducing agent. An alternative concept stipulates that contaminants are removed by adsorption, co‐precipitation, and size‐exclusion in a reactive filtration process. This article underlines the universal validity of the alternative concept. It is shown that admixing non‐expansive material to Fe0 as a pre‐requisite for sustainable Fe0‐based filtration systems. Fe0‐based filters are demonstrated an affordable, appropriate, and efficient decentralized water treatment technology. |
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| Keywords: | Fe‐based alloy Media filtration Size‐exclusion Zerovalent iron |
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