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WATER QUALITY ASSESSMENT IN THE SOUTHERN BUG IN POWERFUL PLACE OF DRINKING WATER INTAKE IN VINNYTSIA REGION »« INFLUENCE OF SURFACE CHEMISTRY OF ACTIVATED CARBON ON THE ADSORPTION OF NATURAL ORGANIC MATTER

METHODS OF DETERMINE OF MAGNETIC-RECEPTIVE IMPURITIES IN LIQUID MEDIA

V.I. Garashchenko, А.V. Garashchenko, V.V. Drevetsky, А.А. Lebed

National University of Water Management and Nature Recources Use, Rivne, Ukraine

e-mail: vigarashchenko@yandex.ru

The analysis of existing methods and magnetic analyzers used to determine the magnetic fraction of impurities was performed. Their advantages and disadvantages was shown. A method for determining the magnetic fraction of impurities, based on repeated cyclical filtration of aqueous samples using laboratory magnetic filter with ferromagnetic filtering nozzle, which has anti-corrosion properties was offered. Large-scale studies for determine the fraction of magnetic impurities in technological waters of Tiraspol, Ostroh, Odessa, Krasnodar, Kherson, Shymkent and Kalush CHP, Uglegorsk TPP and chemical plant “Russia” were conducted. It was shown that, despite the differences in aquatic environments electric utilities in chemical composition and temperature conditions, the magnitude of the magnetic fraction in the technological waters is about 72-98%. It was proposed the experimental-computational method for determining the magnetic fraction of impurities, based on the experimental depending of change of the iron concentration from magnetized filtering nozzle length. With the using of formulas that provided in the article calculates the value of the magnetic fraction. To determine the fraction of magnetic impurities in technological waters (when impurities having sizes of 0.01-10 microns and a concentration of 30-100 g/dm3) an improved magnetic analyzer with flocculation chamber was proposed. In the flocculation chamber there is an integration of impurities, as a result the number of cycles in determining the magnetic fraction decreases by 1.5 times and the time of analysis is reduced.

Keywords: magnetic impurities fraction, ferromagnetic filtering nozzle, magnetic filtration.

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07.04.2016 at 8:47 pm