• Media type: E-Article
  • Title: On the suitability of admixing sand to metallic iron for water treatment
  • Contributor: Noubactep, Chicgoua [Author]
  • imprint: GEO-LEOe-docs (FID GEO), 2013
  • Language: English
  • DOI: https://doi.org/10.7726/ijeps.2013.1004
  • ISSN: 1741-511X
  • Origination:
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  • Description: This communication clarifies the relationships between sand addition and the sustainability of iron/water systems for environmental remediation. It is shown that any enhanced contaminant removal in an iron/sand/water relative to an iron/water system is related to the avoidance/delay of particle cementation by virtue of the inert nature of sand. The argument that sand dissolution produces protons (H+) to sustain iron corrosion is disproved by the very low dissolution kinetics solubility of SiO2-bearing minerals under environmental conditions. This demonstration corroborates the concept that aqueous contaminant removal in iron/water systems is not a process mediated by electrons from Fe0.
  • Access State: Open Access