TY - GEN
T1 - The implications of disinfection byproduct formation in the selection of a disinfection strategy
AU - De Las Casas, Carla
AU - Burlingham, Fran
AU - Witzgall, Bob
AU - Yu, William
AU - Ohlinger, Kurt
AU - Merlo, Rion
AU - Snyder, Shane
AU - Parker, Denny
N1 - Publisher Copyright:
Copyright © 2013 Water Environment Federation. All Rights Reserved.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
KW - Aldehydes
KW - Bromate
KW - Chlorodibromomethane (CDBM)
KW - Dichlorobromomethane (DBCM)
KW - Disinfection
KW - Disinfection Byproduct (DBP)
KW - Haloacetic acids (HAAs)
KW - NC nitrosodimethylamine (NDMA)
KW - Trihalomethanes (THMs)
UR - http://www.scopus.com/inward/record.url?scp=85070516992&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85070516992&partnerID=8YFLogxK
U2 - 10.2175/193864713813668286
DO - 10.2175/193864713813668286
M3 - Conference contribution
AN - SCOPUS:85070516992
T3 - 86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
SP - 961
EP - 976
BT - 86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
PB - Water Environment Federation
T2 - 86th Annual Water Environment Federation Technical Exhibition and Conference, WEFTEC 2013
Y2 - 5 October 2013 through 9 October 2013
ER -