Ultraviolet disinfection of water in recirculating aquaculture system: a case study at sturgeon caviar fish farm

Anatolii SEMENOV; Kateryna SEMENOVA

doi:10.14720/aas.2022.118.3.2488

Authors

Anatolii SEMENOV Poltava University of Economics and Trade, Faculty of Commodity science, Trade and Marketing, Department of Commodity research, Biotechnology, Expertise and Customs, Poltava, Ukraine
Kateryna SEMENOVA Poltava University of Economics and Trade, Ukraine

DOI:

https://doi.org/10.14720/aas.2022.118.3.2488

Keywords:

aquaculture, fish, sturgeon, recirculation system, UV water disinfection

Abstract

In this report, we present a practical example of ultraviolet (UV) water disinfection in an aquaculture facility for sturgeon caviar production. Among the methods of water disinfection in recirculating aquaculture systems, the technical approaches using ozonation or ultraviolet radiation in combination with other methods are the most effective. However, improper use of ozonation can result in excessive ozone concentrations that can cause serious harm to fish and be harmful to the environment and personnel. Therefore, we describe an example of a reagent-free ultraviolet water disinfection system. Preliminary results show that filtration followed by ultraviolet irradiation inactivates microorganisms in fish tank water. Total microbial count, total coliform bacteria, and E. coli (CFU/m³) did not exceed the permissible values. The described UV system provides an irradiance of 180 W/m². For a pool with a water volume of 300 m³, bacteriological purity of the water was achieved with 480 W of UV-light.

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Author Biographies

Anatolii SEMENOV, Poltava University of Economics and Trade, Faculty of Commodity science, Trade and Marketing, Department of Commodity research, Biotechnology, Expertise and Customs, Poltava, Ukraine

Department of Commodity Studies, Biotechnology, Expertise and Customs, Associate Professor
Kateryna SEMENOVA, Poltava University of Economics and Trade, Ukraine

BA in International Economics, Master`s degree student

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