Ozone-based disinfection system for refrigerated storage and ice-making applications

A modular ozone-based disinfection system for treating air in a refrigerated space, the system comprising:

• an electrolytic ozone generator configured to generate a gaseous ozone from water;
• a housing configured to be positioned within or adjacent to a refrigerated space;
• an air circulation subsystem comprising one or more fans configured to direct the gaseous ozone containing air into the refrigerated space;
• a controller configured to:
• operate the electrolytic ozone generator and the air circulation subsystem in a disinfection mode in which the gaseous ozone is directed into the refrigerated space to raise an ambient ozone level;
• and
• subsequently operate the air circulation subsystem in a purification mode in which the gaseous ozone containing air is passed across a titanium dioxide-coated surface to reduce the gaseous ozone concentration to a level suitable for return to the refrigerated space.

A modular ozone-based disinfection system for disinfecting a refrigerated space and water used therein, the system comprising:

• an electrolytic ozone generator configured to generate a gaseous ozone from water;
• a housing configured to contain the electrolytic ozone generator and to direct airflow and/or water for treatment;
• a manganese dioxide treatment module positioned to receive the gaseous ozone and configured to chemically react with the gaseous ozone to produce hydroxyl radicals for disinfection;
• an optional aqueous ozone circuit configured to route an ozonated water into a water line used by an ice maker or a refrigerator water dispenser;
• and
• a controller configured to selectively activate one or more of a hydroxyl-enriched gas mode, the aqueous ozone circuit, or an air purification cycle.