Dissolved organic nitrogen removal during alum and cationic polymer coagulation

Wontae Lee, Paul Westerhoff

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

Abstract

The effect of alum and cationic polymer on dissolved organic nitrogen (DON) removal during alum/polymer coagulation was investigated through bench-scale jar tests. Alum coagulation removed equal or slightly lower amounts of DON as compared to dissolved organic carbon (DOC). At lower alum dosages (< 5 mg per mg DOC), the cationic polymer enhanced DON removal by an additional 15 to 20% over alum alone. At very high alum dosages (> 8 mg per mg DOC), however, the cationic polymer addition negligibly increased DON removal. Results indicated that the DON added as part of the cationic polymer was almost completely removed at optimum alum and polymer doses.

Original languageEnglish (US)
Title of host publicationAmerican Water Works Association - Water Quality Technology Conference and Exposition 2006
Subtitle of host publicationTaking Water Quality to New Heights
Pages509-518
Number of pages10
StatePublished - Dec 1 2006
EventWater Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights - Denver, CO, United States
Duration: Nov 5 2006Nov 9 2006

Publication series

NameAmerican Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights

Other

OtherWater Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights
CountryUnited States
CityDenver, CO
Period11/5/0611/9/06

ASJC Scopus subject areas

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

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  • Cite this

    Lee, W., & Westerhoff, P. (2006). Dissolved organic nitrogen removal during alum and cationic polymer coagulation. In American Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights (pp. 509-518). (American Water Works Association - Water Quality Technology Conference and Exposition 2006: Taking Water Quality to New Heights).