2024-03-28T10:55:36Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1675972018-08-27T07:39:35Zcom_10261_5062com_10261_5col_10261_5064
Chemical characterization and relative toxicity assessment of disinfection byproduct mixtures in a large drinking water supply network
Postigo, Cristina
Emiliano, Pere
Barceló, Damià
Valero, Fernando
European Commission
iodinated disinfection by-products
trihalomethanes
haloacetic acids
Chlorination
drinking water treatment
Reducing the formation of disinfection by-products (DBPs) during the process of water potabilization and proper risk assessment of drinking water requires exploring the potential of the source water and the applied treatment to generate these chemicals. This is actually more challenging in large drinking water networks that use different source waters to satisfy potable water demand. In this regard, this works investigated the formation of DBPs in water matrices that are commonly supplied to the city of Barcelona and its metropolitan area. The regulated trihalomethanes and haloacetic acids were the most abundant DBP classes in these waters, followed by haloacetamides and haloacetonitriles or trihalogenated acetaldehydes (THALs). On the contrary, the formation potential of iodo-DBPs was minor. Mixing of drinking water treatment plant (DWTP) finished waters with desalinated water decreased the overall DBP formation potential of the water but resulted in the increased formation of brominated DBPs after long chlorine contact time. The formation of most DBPs was enhanced at high water temperatures (except for Br-THALs) and increasing residence times. Potential cytotoxicity and genotoxicity of the DBP mixtures were mainly attributed to the presence of nitrogen-containing DBPs and HAAs.
2018-07-12T13:10:33Z
2018-07-12T13:10:33Z
2018-07
artículo
Journal of Hazardous Materials
http://hdl.handle.net/10261/167597
10.1016/j.jhazmat.2018.07.022
http://dx.doi.org/10.13039/501100000780
eng
Preprint
https://doi.org/10.1016/j.jhazmat.2018.07.022
Sí
openAccess
Elsevier