Removal of arsenic from water: effects of competing anions on As(III) removal in KMnO4-Fe(II) process.

@article{Guan2009RemovalOA,
  title={Removal of arsenic from water: effects of competing anions on As(III) removal in KMnO4-Fe(II) process.},
  author={Xiaohong Guan and Haoran Dong and Jun Ma and Li Jiang},
  journal={Water research},
  year={2009},
  volume={43 15},
  pages={
          3891-9
        }
}
Effects of sulfate, phosphate, silicate and humic acid (HA) on the removal of As(III) in the KMnO(4)-Fe(II) process were investigated in the pH range of 4-9 with permanganate and ferrous sulfate applied at selected dosage. Sulfate decreased the removal of arsenic by 6.5-36.0% at pH 6-9 and the decrease in adsorption did not increase with increasing concentration of sulfate from 50 to 100mg/L. In the presence of 1mg/L phosphate, arsenic removal decreased gradually as pH increased from 4 to 6… CONTINUE READING

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