Chlorite decay kinetics in chloraminated waters

Mongkolaya Rungvetvuthivitaya, Rengao Song, Mark Campbell, Jack Wang, Chittaranjan Ray

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Direct application of low levels of chlorite is a very effective way to control nitrification in the distribution system. However, before chlorite can be fully utilized as a nitrification inhibitor, the effects of important water quality parameters on chlorite decay must be determined. This study examined variables individually which include pH, initial chlorite concentration, temperature, dissolved organic carbon (DOC), and chloramine. Results obtained from batch experiments indicate that chlorite itself is stable in buffered water with pH from 7 to 9, temperature from 15 to 35 °C, and in the presence of 1 to 3 mg/L of DOC from different sources. On the other hand, significant chlorite decay was observed in the presence of chloramines.

Original languageEnglish (US)
Title of host publicationAmerican Water Works Association - Water Quality Technology Conference and Exposition 2007
Subtitle of host publicationFast Tracks to Water Quality
Pages3227-3241
Number of pages15
StatePublished - 2007
Externally publishedYes
EventWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality - Charlotte, NC, United States
Duration: Nov 4 2007Nov 8 2007

Publication series

NameAmerican Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality

Conference

ConferenceWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
Country/TerritoryUnited States
CityCharlotte, NC
Period11/4/0711/8/07

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology
  • Geography, Planning and Development

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