Minimizing Chlorite Ion and Chlorate Ion in Water Treated With Chlorine Dioxide
- 1 April 1990
- journal article
- research article
- Published by Wiley in Journal AWWA
- Vol. 82 (4) , 160-165
- https://doi.org/10.1002/j.1551-8833.1990.tb06947.x
Abstract
Minimizing the inorganic by‐products chlorite ion and chlorate ion in drinking water treated with chlorine dioxide is important if Cl02 is to remain a viable alternative in potable water treatment. The use of sulfur dioxide‐sulfite ion chemistry to quantitatively remove chlorite ion to below the 0.1‐mg/L level is described, along with the use of free chlorine to remove the sulfur dioxide‐sulfite ion. The stoichiometry and the rate law are described for pH values of 5.5 to 8.5 so that the chemistry can be applied directly in existing drinking water treatment facilities.Keywords
This publication has 18 references indexed in Scilit:
- Determination of low concentrations of chlorite and chlorate ions by using a flow-injection systemAnalytica Chimica Acta, 1989
- Nonmetal redox kinetics: hypochlorite and hypochlorous acid reactions with sulfiteInorganic Chemistry, 1989
- Utilisation of kinetic-based flow injection methods for the determination of chlorine and oxychlorine speciesAnalytica Chimica Acta, 1989
- Selectivity enhancement by flow injection analysisAnalytica Chimica Acta, 1986
- Stoichiometry of the reaction between chorite ion and hypochlorous acid at pH 5Environmental Science & Technology, 1984
- Iodometric method for determination of trace chlorate ionAnalytical Chemistry, 1984
- Stoichiometry and kinetics of the reaction between chlorine dioxide and sulfur(IV) in basic solutionsInorganic Chemistry, 1978
- Direct determination of chlorite ion in the presence of excess hypochlorite ionAnalytical Chemistry, 1978
- Kinetics of disproportionation of chlorous acidCanadian Journal of Chemistry, 1968
- The rapid interaction between sodium chlorite and dissolved chlorineInorganic Chemistry, 1967