Processes of attenuation of dissolved arsenic downstream from historic gold mine sites, New Zealand.

@article{Haffert2008ProcessesOA,
  title={Processes of attenuation of dissolved arsenic downstream from historic gold mine sites, New Zealand.},
  author={Laura Haffert and Dave Craw},
  journal={The Science of the total environment},
  year={2008},
  volume={405 1-3},
  pages={286-300}
}
Mine and processing sites in the mesothermal gold deposits of the Reefton gold field, New Zealand, generate extremely high dissolved As concentrations (up to 59 mg/L). Attenuation of these waters takes place by at least one of the three mechanisms: (1) precipitation of the secondary arsenic mineral scorodite, (2) chemisorption onto iron oxyhydroxide (HFO) and (3) dilution with regional catchment water. The presence and effectiveness of these mechanisms vary among the three studied catchments. A… CONTINUE READING
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