Open AccessEXPERIMENTAL STUDY OF ACTIVE CHLORINE INFLUENCE TO PATHOGENIC AND POTENTIALLY PATHOGENIC MICROORGANISMS
Author(s) -
V. V. Aleshnya,
П. В. Журавлев,
О П Панасовец,
Д. А. Седова
Publication year - 2018
Publication title -
zdorovʹe naseleniâ i sreda obitaniâ
Language(s) - English
Resource type - Journals
eISSN - 2619-0788
pISSN - 2219-5238
DOI - 10.35627/2219-5238/2018-307-10-36-38
Subject(s) - chlorine , microorganism , salmonella , microbiology and biotechnology , contamination , pseudomonas aeruginosa , pathogenic bacteria , water treatment , population , biology , bacteria , chemistry , medicine , environmental science , environmental engineering , ecology , environmental health , genetics , organic chemistry
In experimental conditions, an assessment was given on the efficiency of active chlorine effect on the viability of microorganisms having a sanitary-epidemiological significance. It was shown that in conditions of intensive water source contamination of maximum load using treatment facilities with double chlorination (chlorine dose 5 mg/l) after 30 minutes of contact, only E.coli died, at the same time, conditionally pathogenic and pathogenic microorganisms, the infective dose of which was within the same limits (50 000 CFU/l), were inactivated by 99,9 %; with an increase in the applied dose of 10 and 100 times, the degree of inactivation decreased in Salmonella to 99,5 %, in Pseudomonas aeruginosa to 99,2 %, Klebsiella remained at the same level of 99,9 %. This predetermines the possibility of their appearance in drinking water, which can lead to the emergence of acute intestinal infections among the population.