17914. The most common method of disinfection of water used in Bangladesh is-
ব্যাখ্যা: ব্যাখ্যা: Chlorination, ozonation and chloramines are primary methods for disinfection. However potassium permanganate, photocatalytic disinfection and chlorine di-oxide can also be used. But the most common sanitizing treatment for wells is shock chlorination.