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COMBINED OZONIZATION SYSTEM FOR MILK STERILIZATION

https://doi.org/10.26897/2687-1149-2021-6-62-67

Abstract

The main disadvantage of the existing facilities for antibacterial milk treatment is its low quality due to the lack of ozonation. Milk sterilization requires a combined system of ozonation that includes ozonation and ultraviolet irradiation. In this system, ozone is prepared in a sealed chamber, and ozone saturation of milk occurs impulsively. In each feeding period, the amount of ozone is increased step-by-step, and its concentration can be varied according to the required level of microbial contamination of milk. At the initial stage, ozone at a concentration of 24 g/m3 is applied in pulses for 10 s; then, based on the readings of the bacterial concentration sensor, the operating mode is adjusted according to the program. An operational algorithm of the control program of the combined ozonation system for milk sterilization is developed to operate in two modes: the filling mode and the milk processing mode. Microbiological analysis of sterilized milk shows that the maximum effect is observed in the first 15 seconds of the system operation. On average, the concentration of pathogenic microflora decreases by 24%. Within 60 seconds, the microbial contamination of milk decreases by 49%. The combined ozonation system makes it possible to improve the quality of milk sterilization, taking into account the required level of microbial contamination in milk and reducing the adverse effects of long-term high-temperature exposure. The authors have experimentally proved the feasibility of the combined ozonation system using the developed control program algorithm.

About the Authors

ALEKSANDR E. Kompaniets
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


VLADIMIR F. Storchevoy
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


YURI A. Sudnik
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


NIKOLAY E. Kabdin
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


SERGEI A. Andreev
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


DMITRIY V. Anashin
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


YANA S. Chistova
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy
Russian Federation


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Review

For citations:


Kompaniets A.E., Storchevoy V.F., Sudnik Yu.A., Kabdin N.E., Andreev S.A., Anashin D.V., Chistova Ya.S. COMBINED OZONIZATION SYSTEM FOR MILK STERILIZATION. Agricultural Engineering (Moscow). 2021;(6):62-67. (In Russ.) https://doi.org/10.26897/2687-1149-2021-6-62-67

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ISSN 2687-1149 (Print)
ISSN 2687-1130 (Online)