The actuality of theme is determined by the problem of biological fouling of technical elements of power plants. Fouling occurs as a result of constantly high temperatures and the presence of nutrients in circulating water. Groups of hydrobionts that appear at the same time show high viability compared to their representatives in natural reservoirs. Therefore, it is necessary to select special methods of control, which will be safe both for the component units and for natural reservoirs to which return water from power plants enters. The paper presents the methodology of implementing corrective treatment with biocides of technical water supply systems (WSS) on the example of tests of biocidal treatment of the Rivne NPP. The requirements for the stages of implementation of corrective (biocidal) treatment of power plants of Ukraine in accordance with the regulatory documents in force in Ukraine are given. Works on the implementation of biocidal treatment of WSS of power plants include hydrobiological monitoring, selection of the type and determination of the effective dose of biocides, corrosion tests of the effect of the dose of biocides on structural materials. The work contains an overview of the methods of prevention and control of biological pollution, systematized data of experimental studies of biocidal treatment and data for the experimental and industrial implementation of biocidal treatment of the Rivne NPP. Reasoned environmental safety of applied biocides in defined effective doses during the industrial operation of corrective treatment with biocides at the Rivne NPP. The experience of implementing biocidal treatment of WSS of nuclear power plants is given, in particular, experimental studies of the introduction of biocidal treatment of the Rivne NPP. The active substances of the tested biocides lose their toxicity in water in a short period of time, but it is sufficient for effective action against all tested pollutants of biological origin, and the residual concentration of biocides is lower than the established limit-permissible concentration in water bodies. A generalization was made about the importance of conducting experimental studies and hydrobiological monitoring in determining the effective dose of biocides for combating fouling.
Author Biographies
О. О. Biedunkova, National University of Water and Environmental Engineering, Rivne
Doctor of Biological Science, Professor
P. M. Kuznietsov, National University of Water and Environmental Engineering, Rivne
