The subject of study was the effect of trichloroisocyanuric acid (TCICA) and sodium salt of dichloroisocyanuric acid (NaDCIC) - the compounds used as disinfectant, on the kinetic of denitrification and desulfurication run with the use of bacteria from the Bacillus and Desulfatomaculum genera.
The inhibitory effect of the compounds tested on microbiological activity of the bacteria was evidenced and the limiting values of their admissible and toxic concentrations were determined which is of importance for protection of natural environment against the influence of wastes which are formed after disinfection.