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Metallic Iron for Water Treatment: A Critical Review
Author(s) -
Noubactep Chicgoua
Publication year - 2013
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.201200502
Subject(s) - filtration (mathematics) , expansive , adsorption , water treatment , precipitation , materials science , process (computing) , zerovalent iron , metal , premise , environmental science , chemical engineering , process engineering , metallurgy , environmental engineering , chemistry , computer science , engineering , mathematics , physics , composite material , philosophy , linguistics , statistics , compressive strength , organic chemistry , meteorology , operating system
Water treatment with metallic iron (Fe 0 ) is still based on the premise that Fe 0 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 Fe 0 as a pre‐requisite for sustainable Fe 0 ‐based filtration systems. Fe 0 ‐based filters are demonstrated an affordable, appropriate, and efficient decentralized water treatment technology.