Determination of standardized doses of ultraviolet disinfection of water from bacterial, viral and parasitic contamination
- Авторлар: Rakhmanin Y.A.1, Zagainova A.V.1, Artemova T.Z.1, Gipp E.K.1, Kuznetsova K.Y.1, Kurbatova I.V.1, Gritsyuk O.V.1, Novozhilov K.A.1, Aslanova M.M.1, Maniya T.R.1, Fedets Z.E.1, Nedachin A.E.1, Dmitrieva R.A.1, Doskina T.V.1, Abramov I.A.1, Zhuravlev P.V.2
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Мекемелер:
- Centre for Strategic Planning, Russian Ministry of Health
- Rostov Research Institute of Microbiology and Parasitology
- Шығарылым: Том 98, № 12 (2019)
- Беттер: 1342-1348
- Бөлім: ENVIRONMENTAL HYGIENE
- ##submission.datePublished##: 14.10.2020
- URL: https://archivog.com/0016-9900/article/view/639799
- DOI: https://doi.org/10.47470/0016-9900-2019-98-12-1342-1348
- ID: 639799
Дәйексөз келтіру
Толық мәтін
Аннотация
Introduction. The proposed criteria for the sanitary-bacteriological assessment of the quality of tap water must ensure its epidemic safety. In conditions of intensive bacterial contamination of water bodies, a special role is played by the barrier function of water treatment plants in relation to infectious agents. The overall quality of microorganisms is the pronounced resistance in the aquatic environment, primarily resistance to a number of chlorine-containing disinfectants, which guarantee the preservation of the population in drinking water undergone a water treatment system. Therefore, it is necessary to consider other possible ways of disinfection, such as ultraviolet irradiation.
Determination of the effective dose of ultraviolet (UV) disinfection against bacterial, viral and parasitic contamination of drinking water.
Material and methods. Tap water was used as model water for research. The effectiveness of UV irradiation with doses of 25, 40, 60 mJ/cm2 against microorganisms was studied.
Results. In the course of the work, it was established that the UV disinfection technology with a dose of at least 25 mJ/cm2 can be recommended as a disinfection method when used in conjunction with chlorination.
Conclusion. In water treatment technology, a dose of at least 25 mJ/cm2 of UV irradiation can be recommended as a method of disinfecting water in case of microbial contamination by bacteria and viruses at a concentration not exceeding nˑ102 cells/virions in 100 ml, and at a concentration of microbiological contamination nˑ103 cells/virions in 100 ml of water, the use of UV disinfection can be recommended only in conjunction with chlorination and with the provision of indices on the residual chlorine in the distribution network before serving to the consumer. The presented scheme will increase the barrier role of water treatment facilities with respect to viral and bacterial contamination, provide a prolonged decontamination effect, contributing to the suppression of bacterial growth in breeding nets and limit the level of parasitic water contamination during water treatment.
Негізгі сөздер
Авторлар туралы
Yu. Rakhmanin
Centre for Strategic Planning, Russian Ministry of Health
Хат алмасуға жауапты Автор.
Email: noemail@neicon.ru
ORCID iD: 0000-0003-2067-8014
Ресей
Anzhelika Zagainova
Centre for Strategic Planning, Russian Ministry of Health
Email: angelikaangel@mail.ru
ORCID iD: 0000-0003-4772-9686
MD, Ph.D., head of the laboratory of sanitary bacteriology, Virology and Parasitology Centre for Strategic Planning, Moscow, 119121, Russian Federation.
e-mail: angelikaangel@mail.ru
РесейT. Artemova
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-0986-250X
Ресей
E. Gipp
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-0544-8248
Ресей
K. Kuznetsova
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
I. Kurbatova
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
O. Gritsyuk
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
K. Novozhilov
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
M. Aslanova
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
T. Maniya
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
Z. Fedets
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
Ресей
A. Nedachin
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-8432-5966
Ресей
R. Dmitrieva
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-9456-6421
Ресей
T. Doskina
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-8553-9982
Ресей
I. Abramov
Centre for Strategic Planning, Russian Ministry of Health
Email: noemail@neicon.ru
ORCID iD: 0000-0002-7433-7728
Ресей
P. Zhuravlev
Rostov Research Institute of Microbiology and Parasitology
Email: noemail@neicon.ru
Ресей
Әдебиет тізімі
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