Method for producing packaged drinking water by combining ultraviolet sterilization and micro-ozone sterilization

The invention relates to the technical field of drinking water production, and discloses a method for producing packaged drinking water by combining ultraviolet sterilization and micro-ozone sterilization. Tap water sequentially passes through a mechanical filtering device, an activated carbon filtering device, a first ultraviolet sterilization device, a precision filtering device, a reverse osmosis device, a second ultraviolet sterilization device and an ozone sterilization device which are connected through pipelines and then is filled to obtain the packaged drinking water. The ultraviolet irradiation dose in the first ultraviolet sterilization device is 70-90mJ/cm < 2 >, the ultraviolet irradiation dose in the second ultraviolet sterilization device is 100-400mJ/cm < 2 >, and the ozoneconcentration in the ozone sterilization device is 0.1-0.4 ppm. The production process combining secondary ultraviolet sterilization and micro-ozone sterilization is adopted, it can be guaranteed thatthe final packaged drinki