Studies were conducted to determine the biofloc media toxicity degree to hydrobionts by biotesting. Environment variability in which biocenosis biofloc is formed can cause optimal C/N ratio values violations in a closed water system, which is considered a critical factor affecting the formation rate of microbial communities and species ratio in them. Test objects use in this study showed no toxic effects on the bioindicator in the environment created by the bacterial communities that make up the Biofloc system. Of course, the data obtained cannot be considered exhaustive, but it should be noted that aquatic plant use as a bioindicator provides new opportunities for developing biofloc systems potential. The BFT-systems principle is to stimulate the natural growth of macroaggregate flocs, enhance culture water self-nitrification. A prerequisite for the flocs’ functioning as a biofilter analogue, along with supporting them in suspension, is the presence of an easily digestible organic carbon source, as the cultures of bacterial microorganisms in the base of flocs are heterotrophic.
The development of computerized monitoring systems for the educational environment health-saving indicators is currently one of the most urgent tasks of pedagogical research. The article presents the experience of using the information system developed by the Don State Technical University and used to conduct the monitoring studies in 1210 educational institutions of the Rostov region. The information system for monitoring the education sector includes monitoring the indicators of the educational organizations’ property complex, the technical condition of the school building and the institutions’ visual environment design. The information system used in the Rostov Region is the first computerized system for monitoring the environment of educational institutions in the Russian Federation, which allows automatic control of the environmental factors for students and institutions’ property complex technical re-equipment optimization to ensure the health activities of schools throughout the region.
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