The Influence of Helium And Cavitation on the Yeast Life Process

Purpose of the study is to іnvestigate simultaneous effect cavitation and helium on viability yeast genus Saccharomyces cerevisiae in water. To change number cells during treatment water system gas atmosphere. Methods. Yeast type were used as test microorganisms. Freshly prepared distilled desaerated was for research, which introduced with a microbiological loop. The volume model medium cooled glass reactor tap water, temperature corresponded 298 ± 1 K. total duration process 2 hours. source an ultrasonic generator UZDN-2T frequency 22 kHz power 35 W. bubbled throughout process. helium. microorganisms per unit determined by colonies nutrient Petri dishes expressed colony-forming units (CFU). Results. In experimental part work content under conditions supply proposed. efficiency purification from result combined action helium/cavitation has been established. value effective rate constant destruction according kinetic reaction equation first order calculated. bubbling through studied. proportion destroyed two-hour yeast-contaminated at different regimes calculated compared. An active decrease aqueous beginning achievement (Dd) 40.48% after 30 min He/cavitation initial contamination 4.2 · 103 CFU/cm3. NMend = 100 CFU/cm3 90 minutes treatment, that corresponds degree > 97%. end almost pure allows discharge treated into natural Conclusions. obtained results indicate intensive studied conditions. influence nature contaminants described.