Cytotoxicity Comparison between Drinking Water Treated by Chlorination with Postchloramination versus Granular Activated Carbon (GAC) with Postchlorination.

ABSTRACT: Granular activated carbon treatment with postchlorination (GAC/Cl₂) and chlorination followed by chloramination (Cl₂/NH₂Cl) represent two options for utilities to reduce DBP formation in drinking water. To compare the total cytotoxicity of waters treated by a pilot-scale GAC treatment system with postchlorination (and in some instances with prechlorination upstream of GAC (i.e., (Cl₂)/GAC/Cl₂)) and chlorination/chloramination (Cl₂/NH₂Cl) at ambient and elevated Br^- and I^- levels and at three different GAC ages, we applied the Chinese hamster ovary (CHO) cell cytotoxicity assay to whole-water extracts in conjunction with calculations of the cytotoxicity contributed by the 33 (semi)volatile DBP

SUBMITTER: Lau SS 

PROVIDER: S-EPMC10501121 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature