| 摘要 |
The invention relates to a sanitizing mist flooding system and method, and to a method for disinfecting inner surfaces of aseptic tanks and piping in installations for storing liquids in general, the system comprising external equipment (10) provided with sanitizing mist generation means (11), gas flow control means (27, 30, 31), in-line sensors (40, 41, 47) and means (24) for discharging gases from the inside of the tank (50), and means (13, 39) for admitting the mist entraining medium comprising inert gases. The disinfection method comprises introducing a sanitizing mist with droplets of maximum 10 μm, preferably of maximum 5 μm, at the same time as the gases contained inside said tanks and piping is withdrawn, maintaining a positive pressure inside said tanks and piping, the method enabling the oxygen concentration inside the tanks to be reduced in two steps, a first step in which oxygen concentration is reduced to about 10%, and a second step in which oxygen concentration is reduced to less than 1%, a sanitizing mist being blown into the inside of the tank during said second step. |
