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Comparative analysis of the toxicity of methylene blue and proflavine for saprophytic bacteria and photodynamic-decontamination of water

Purtskhvanidze Violetta Aleksandrovna  (candidate of biological Sciences, Chief physician of medical center of high technologies "Laservita", Moscow)

Simakov Yuri Georgievich  (doctor of biological Sciences, Professor, Moscow state University of technologies and management, Moscow)

Batkayeva Nadezhda Vladimirovna  (Researcher, PFUR, Moscow)

A comparative analysis of the toxicity of aqueous solutions of methylene blue and proflavine photodynamic treatment with fluorescent lamps, with 3 thousand Lux. such biological indicators of saprophytic bacteria as BOD5 and the increase in the number of bacteria. It is shown that methylene blue at lower concentrations than proflavine exhibits phototoxicity to saprophytic bacteria in the water from a natural body of water (allowable concentration for methylene blue on such indicators as the change in BOD5 and growth of bacteria in ml of pond water were the same. 0.01 mg/l, and PF, respectively, 0.05 and 0.1 mg/l). From the point of view of phototoxicity of substances for disinfection of water in large volumes is economically advantageous to use methylene blue.

Keywords:Methylen blue, proflavine, phototoxicity, BOD5, growth of bacteria, photodynamic-decontamination of water.

 

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Citation link:
Purtskhvanidze V. A., Simakov Y. G., Batkayeva N. V. Comparative analysis of the toxicity of methylene blue and proflavine for saprophytic bacteria and photodynamic-decontamination of water // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2017. -№06. -С. 3-9
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