STUDIES ON THE TRICHLOROISOCYANURIC ACID(TCCA)IN THE DISINFECTION OF DRINKING WATER / 第二军医大学学报

ABSTRACT

TCCA containing a high amount of effective chlorine is an organic disinfectant for drinking water. A small amount of it has satisfactory effect with less odour and color, It is stable in storage.The factors which effect disinfection are less.It is suitable for the disinfection of various kinds of water sources. The laboratory experiment and field investigation showed that the rate of killing bacteria in water was 99.99% when its concentration was 1.4-3.4 mg/1.the temperature was 5?to 30℃, the pH value was 5-9, the disinfecting time was 10 to 30 minutes.There was an exception of the experimental group number 7 and 9 which showed the rate of killing bacteria was 99. 94%. The toxicity of TCCA is low, the disinfectant effect is much better when it is used with SM-92 coagulant.