Enhanced disinfection by combined application of potassium permanganate and chloramine

The inactivation effect of microbe is examined by individual and combined applications of potassium permanganate and chloramine with laboratory water samples. The total coliform group and total count of bacteria are regarded as monitoring index. The aim is to develop a disinfection method for drinking water, which takes advantage of potassium permanganate and chloramine. The results show that the combined applications of potassium permanganate and chloramine are more effective to the inactivation of the indicator microbe than their individual application. The calculation from the Berenbaum formula verified that the effect on reducing the microbe index is synergistic effect to the combined applications of potassium permanganate and chloramine.