Iodine based water disinfection: A review

Often bacteriological quality of ground water or surface water does not meet the prescribed standards. Iodine has been known for its germicidal action and has been used since 1920 for water disinfection. NASA, USA has used iodine-based disinfection in its space flights. In this review, water disinfection by different formulations incorporating iodine and the mechanisms of germicidal action are discussed.