Employees of the Branch of Chemistry and Water Technology EV Sotnikova and H. Yu Turchinovich studied the effects of electrolytic silver on the algae that cause fouling of artesian water supply pipelines and Kiev worsened organoleptic properties of water (most frequently encountered in fouling Chloroglea pallida).

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The experiments showed that 0.5 mg / l of silver at 20 ° C and contact time one or two days is the minimum effective dose that causes death of these algae at 10 ° C. The same effect is observed at a dose of 1.0 mg of silver / l. These studies we have, unfortunately, are not sufficiently disclose the anti-microbial properties of silver is mainly due to the fact that the works are rarely indicated concentration and the time during which it kills bacteria.

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An exception is the work of Romanian scientists Fyrshirotu, Koniver and Borovik, which provides anti-microbial spectrum of 11 microorganisms. However, researchers have studied only a single very high concentration of silver, 250 mg / l, which is significantly higher than the concentration corresponding to the bactericidal effect. These considerations led us to study the effect of silver oligodynamic on the spectrum, which consists of 17 microorganisms, comprising gram-positive, Gram-negative bacteria and yeast.

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Studied doses of silver - 10, 5, 0.5 and 0.2 mg / l. Most sensitive to silver are bessporovye gram and gram bacteria. Spore-forming bacteria are insensitive to silver. Yeast-like fungi of the genus Candida in a concentration of 100 thousand microbial cells in 1 ml were completely suppressed by 5.10 mg / l silver.