The implications of disinfection byproduct formation in the selection of a disinfection strategy

Carla De Las Casas, Fran Burlingham, Bob Witzgall, William Yu, Kurt Ohlinger, Rion Merlo, Shane Snyder, Denny Parker

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

Abstract

In order to meet future discharge limitations, the Sacramento Regional County Sanitation District must upgrade its wastewater treatment plant. Pilot facilities were operated as part of the Advanced Treatment Technology Pilot project. The project included a biological nitrogen removal (BNR) system, three filtration technologies (conventional granular media filter [GMF], a GMF with a preozonation step and a membrane filter) and three disinfection technologies (ultraviolet irradiation, ozone and chlorine). Chlorodibromomethane (CDBM) and dichlorobromomethane (DCBM) were monitored to evaluate if chlorine disinfection could meet discharge limitations. In addition, chloroform, bromoform, NDMA, bromate, haloacetic acids and aldehydes were monitored for all disinfectants. Both benchCscale and pilotCscale evaluations were conducted for each postCfiltration disinfection technology. When compared with chloramination, free chlorine disinfection resulted in higher CDBM and DCBM, but lower NDMA concentrations. Ozone disinfection generated higher concentrations of bromate, NDMA and aldehydes. Overall, UV disinfection resulted in the lowest concentrations for all DBPs tested.

Original languageEnglish (US)
Title of host publication86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
PublisherWater Environment Federation
Pages961-976
Number of pages16
ISBN (Electronic)9781510870444
DOIs
StatePublished - 2013
Event86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013 - Chicago, United States
Duration: Oct 5 2013Oct 9 2013

Publication series

Name86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
Volume2

Conference

Conference86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
CountryUnited States
CityChicago
Period10/5/1310/9/13

Keywords

  • Aldehydes
  • Bromate
  • Chlorodibromomethane (CDBM)
  • Dichlorobromomethane (DBCM)
  • Disinfection
  • Disinfection Byproduct (DBP)
  • Haloacetic acids (HAAs)
  • NC nitrosodimethylamine (NDMA)
  • Trihalomethanes (THMs)

ASJC Scopus subject areas

  • Water Science and Technology
  • Ecological Modeling
  • Environmental Chemistry
  • Pollution
  • Waste Management and Disposal

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