TY - JOUR
T1 - Laboratory studies using naturally occurring 'green rust' to aid metal mine water remediation
AU - Bearcock, Jenny M.
AU - Perkins, William T.
AU - Pearce, Nicholas J. G.
PY - 2011/6/15
Y1 - 2011/6/15
N2 - 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
AB - 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
KW - Green rust
KW - Remediation
KW - Contamination
KW - Mine drainage
U2 - 10.1016/j.jhazmat.2011.03.074
DO - 10.1016/j.jhazmat.2011.03.074
M3 - Article
SN - 1873-3336
VL - 190
SP - 466
EP - 473
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -