Preparation of Modified Sponge Iron and Kinetics of Deoxygenization by it

Metallic Iron (Fe0) Provide Possible Solution to Universal Safe Drinking Water Provision

“…Thus, either a Slow Sand Filter (SSF) is used and the operational flow rate is that of a conventional SSF, or the Fe 0 filters are preceded with one or several O 2 scavenging units. Fe 0 itself is a powerful O 2 scavenger [131]. However, while using Fe 0 as O 2 scavenger, care must be taken to avoid that preferential flow created within the scavenger unit don't disturb the flow regime in the effective Fe 0 filters.…”

Metallic iron for water treatment: leaving the valley of confusion

“…8). For example, while considering the H 2 entrapment rate by the iron granules (Sievert's law), the apparent corrosion rate of Fe 0 materials could be characterized by monitoring H 2 evolution (V H2 ) in sealed cells (Reardon 1995(Reardon , 2005 have been widely tested and used in Fe 0 filtration systems Allred 2012;Neumann et al 2013Xu et al 2013Allred and Racharaks 2014;Allred and Tost 2014;Ju et al 2015a, b, c). Each tested material has its own benefits but there is still nothing like a characteristic material class, e.g., cast iron fillings perform better than iron nails for a given application.…”

“…It is understood that gelatinous iron hydroxides also cement particles of added aggregates, particularly under oxic conditions. This evidence makes porous materials (composite iron matrix, sponge iron) potential better materials for sustainable Fe filters (Rahman et al 2013;Li et al 2011;Neumann et al 2013;Xu et al 2013). …”