Laboratory studies using naturally occurring 'green rust' to aid metal mine water remediation

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Green rust, an Fe (II) and (III) oxyhydroxy salt, can alter the aqueous oxidation state, mobility and toxicity, of inorganic contaminants and thus could have applications in water treatment. This paper discusses a series of stirred, open batch experiments designed to evaluate green rust, and its oxidised equivalent in this context comparing it to a ferrihydrite/goethite 'ochre'. Natural green rust was added to different mine waters as either a wet, reduced material or a dry, partially oxidised material. Experiments showed that the addition of either form accelerated the removal of potentially harmful elements from solution. Within one hour Fe. Al and Cu were completely removed from mine waters with initial concentrations of 80, 70 and 8.5 mg/L, respectively, and Zn was reduced from 60 to
Original languageEnglish
Pages (from-to)466-473
JournalJournal of Hazardous Materials
Issue number1-3
Early online date29 Mar 2011
Publication statusPublished - 15 Jun 2011


  • Green rust
  • Remediation
  • Contamination
  • Mine drainage


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