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A platform for research: civil engineering, architecture and urbanism
Evaluating Ferrous Iron for Chlorite Ion Removal
Fe(II) dosing proves an efficient technique for removing ClO2– over a wide range of conditions.
Effective use of chlorine dioxide as an alternative disinfectant in water treatment may require removal of the by‐product chlorite ion (ClO2–). This study evaluated the effect of alkaline conditions (pH 7–10) and the presence–absence of dissolved oxygen on the ability of ferrous iron [Fe(II)] to reduce ClO2– ion to chloride ion (Cl–). Fe(II) dosing from 3.5–4.0 mg Fe(II) per mg ClO2– provided for efficient removal of ClO2– over the targeted pH range. Furthermore, no by‐product formation of chlorate ion was observed. Results from mass balance studies indicated that approximately 95 percent of the reacting ClO2– was chemically reduced to Cl–.
Evaluating Ferrous Iron for Chlorite Ion Removal
Fe(II) dosing proves an efficient technique for removing ClO2– over a wide range of conditions.
Effective use of chlorine dioxide as an alternative disinfectant in water treatment may require removal of the by‐product chlorite ion (ClO2–). This study evaluated the effect of alkaline conditions (pH 7–10) and the presence–absence of dissolved oxygen on the ability of ferrous iron [Fe(II)] to reduce ClO2– ion to chloride ion (Cl–). Fe(II) dosing from 3.5–4.0 mg Fe(II) per mg ClO2– provided for efficient removal of ClO2– over the targeted pH range. Furthermore, no by‐product formation of chlorate ion was observed. Results from mass balance studies indicated that approximately 95 percent of the reacting ClO2– was chemically reduced to Cl–.
Evaluating Ferrous Iron for Chlorite Ion Removal
Hurst, Gregory H. (author) / Knocke, William R. (author)
Journal ‐ American Water Works Association ; 89 ; 98-105
1997-08-01
8 pages
Article (Journal)
Electronic Resource
English
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