Features of the distribution of antioxidant properties of water in a closed water supply system

In the context of the transition to a circular economy and the solution of the problem of obtaining large volumes of biological products, the use of closed water supply system for aquaculture objects becomes promising. The efficiency of obtaining large volumes of products is determined both by a well-chosen aquaculture object and by its growing conditions. Whereas water is a universal solvent and the habitat of hydrobionts, regular monitoring of the physical and chemical indicators of the water, capable to show comprehensively and promptly occurring changes, is necessary. For these purposes, the work is studied an innovative indicator – total antioxidant activity and shows the features of the distribution of antioxidant properties of water in a small closed water supply system. It was revealed that small circulation systems with Clarias gariepinus (planting density up to 83 kg/m 3 ) are characterized by changes in the total antioxidant activity from 3.4944 to 14.783 mgRu/dm 3 .