Driedger, A.Gallard, H.Salhi, E.Von Gunten, U.2011-07-012011-07-012011-07-01200110.1016/S0043-1354(01)00051-3https://infoscience.epfl.ch/handle/20.500.14299/69258WOS:000168217800032In drinking water treatment, the inactivation of microorganisms increases with increasing disinfectant exposure (product of concentration and contact time. CT). Also, the formation of undesired (toxic) disinfection by-products increases with CT. The present study proposes a new concept that uses this undesired side effect of chemical water disinfection fur a Fast and reliable test of treatment efficiency. In laboratory systems. bromate formation during ozonation and the formation of trihalomethanes during chlorination were used to calculate the disinfectant exposure, which is a measure for the achieved degree of disinfection. (C) 2001 Elsevier Science Ltd. All rights reserved.disinfection efficiencydisinfection by-productsCT conceptozonationchlorinationbromate formationchloroform formationBromide-Containing WatersBromate FormationOzoneInactivationtext::journal::journal article::research article