Metallic Iron for Water Treatment: A Critical Review

Metallic iron for water treatment: A critical revie

Water treatment with metallic iron (Fe) is still based on the premise that Fe 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 as a pre-requisite ...

Metallic iron for water treatment: Healing a research community

Despite two decades of intensive research on using metallic iron (Fe) for environmental remediation and water treatment, basic concerns about their efficiency still prevail. This communication presents the basic idea of the view that challenges the prevailing paradigm on the operating mode of Fe/H2O systems. The alternative paradigm is in tune with the mainstream science on aqueous iron corrosi...

Metallic Iron for Water Treatment: Lost Science in the West

Voltaire (1694-1778), the French philosopher said: “There are many ways to waste own time: Doing nothing, doing the wrong thing, doing the good thing at the wrong time” (own translation). The situation is quite different if the time is robbed by someone else or even by a professional mistake. There is a clear evidence that researchers on metallic iron (Fe0 termed as zero-valent iron) for water ...

Metallic iron for safe drinking water worldwide

A new concept for household and large-scale safe drinking water production is presented. Raw water is successively filtered through a series of sand and iron filters. Sand filters mostly remove suspended particles (media filtration) and iron filters remove anions, cations, micropollutants, natural organic matter, and micro-organisms including pathogens (reactive filtration). Accordingly, treatm...

Foliar Iron Fertilization – A Critical Review