REMOVAL OF BIOFILMS AND ORGANOMINERAL DEPOSITS IN COMPLEX HYDRAULIC SYSTEMS OF HEMODIALYSIS MEDICAL EQUIPMENT

Background. As a rule, the proposed approaches of biofilm control, based on the existing experience of suppressing the vital activity of planktonic microorganisms, are not effective. Purpose. To develop methodological approaches and technological solutions for the removal of biofilms and organomineral deposits in complex hydraulic systems of hemodialysis equipment, which can be achieved by searching for and approving optimal methodological and design parameters of the operation of electrochemical domestic devices. Materials and methods. For the synthesis of metastable solutions of active substances with specified properties and their targeted use (disinfection and decalcification) the created unit AQUATRON-05-GDL-200 with a capacity of 200 l/h was used. Results. It was shown that sediment particles dissolved completely within an hour in 0.5% citric acid solution at 78–84°C, while in 0.5 % citric acid solution with micro-supplement of supralimonoic acid complete dissolution within an hour occurs at 44–46°C. Conclusion. The problem of guaranteed application of electrochemically modified citric acid solution not only for disinfection but also for decalcification and biofilm removal, which was not achieved by traditionally used citric acid solution, has been solved. The peculiarities of practical applications are related to the synthesis of metastable solutions with specified properties and their targeted use in biosystems at the place of use. The possibility of setting new tasks is associated with complex tests in complex hydraulic systems of various medical equipment.