The Influence of Helium And Cavitation on the Yeast Life Process

Authors

Abstract

The efficiency of water purification from yeast as a result of the combined action of helium/cavitation has been established. The value of the effective rate constant of microorganisms destruction according to the kinetic reaction equation of the first order is calculated. The viability of yeast under cavitation conditions and bubbling of helium through the water system has been studied. The proportion of destroyed cells during the two-hour action of yeast-contaminated water at different treatment regimes was calculated and compared. An active decrease in the number of Saccharomyces cerevisiae in the aqueous medium at the beginning of the process with the achievement of the proportion of destroyed cells (Dd) 40.48% after 30 min of combined He/cavitation action at the initial microbiological water contamination of 4.2 · 103 CFU/cm3. NMend = 100 CFU/cm3 after 90 minutes of water treatment, that corresponds to the water purification degree > 97%. The end result is almost pure water, which allows to discharge treated water into natural water.

The obtained results indicate intensive cavitation purification of water from the studied microorganisms in the experimental conditions. The influence of the studied gas nature on the process of destruction of microbiological contaminants in water is described.

Author Biography

I. Z. Koval, Lviv Polytechnic National University, 12, S. Bandery, St. , Lviv, 79013, Ukraine

Candidate of Technical Sciences, Associate Professor, Department of Physical, Analytical and General Chemistry

Downloads

Published

2022-01-22

Issue

No. 24 (2021): Visnyk of V. N. Karazin Kharkiv National University series «Еcоlogy»

Section

BIOLOGICAL RESEARCH

License

Copyright (c) 2021 Коваль І. З.

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors reserve the right of attribution for the submitted manuscript, while transferring to the Journal the right to publish the article under the Creative Commons Attribution License. This license allows free distribution of the published work under the condition of proper attribution of the original authors and the initial publication source (i.e. the Journal)

Authors have the right to enter into separate agreements for additional non-exclusive distribution of the work in the form it was published in the Journal (such as publishing the article on the institutional website or as a part of a monograph), provided the original publication in this Journal is properly referenced

The Journal allows and encourages online publication of the manuscripts (such as on personal web pages), even when such a manuscript is still under editorial consideration, since it allows for a productive scientific discussion and better citation dynamics (see The Effect of Open Access).