Ozonation as a Critical Component Of Closed Marine System Design

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Abstract
Two recirculating marine systems using ozonization were examined. In the first system (2271 liters), ozone, used as an oxidative supplement to biological filtration, maintained filter bed effluent levels of total ammonia, unionized ammonia, and nitrite within acceptable limits while nitrates were elevated. Within 24 hours of the cessation of ozonization these levels reversed. In the second system (75,700 liters), a newly-designed, small, high-output ozone generator was evaluated with results similar to those reported for the first system.