sodium chlorite treatment of cooling water with chlorine dioxide

sodium chlorite treatment of cooling water with chlorine dioxide
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  • What is a sodium chlorite generator?
  • This type of generation sacrifices some chlorine dioxide yield to obtain greater purity and ease of operation. The chlorine dioxide produced by this type of generator contains virtually no chlorine. Typical conversions of sodium chlorite to chlorine dioxide are 80%.
  • Does chlorine dioxide revert to chloride ions?
  • Chlorine dioxide consumed in water treatment reactions reverts to chlorite ions (ClO 2-), chlorate ions (ClO 3- ), and chloride ions (Cl -). There are some concerns about the long-term health effects of the chlorite ion in potable water supplies.
  • What is chlorine dioxide used for?
  • Chlorine dioxide is applied to some public water supplies to control taste and odor, and as a disinfectant. It is used in some industrial treatment processes as an antimicrobial. Chlorine dioxide consumed in water treatment reactions reverts to chlorite ions (ClO 2-), chlorate ions (ClO 3- ), and chloride ions (Cl -).
  • How do you make chlorine dioxide?
  • Chlorine dioxide can be generated by activating sodium chlorite (NaClO2) with an oxidizing agent or an acid source.10 The most commonly available oxidant is chlorine, which reacts with sodium chlorite as follows: simply mixing sodium chlorite into water systems which are slightly acidic (pH 4-5).