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EXTRACTION AND CHARACTERIZATION OF HUMIC SUBSTANCES FROM SPHAGNUM PEAT PELOIDS.
Georgian Medical News 2018 March
The objective of the research was development extraction process of humic substances from sphagnum peat peloids, selection of extragent and characterization of humic substances. The objects of the research: Kolkheti peat peloids (Ispani, Anaklia, Churia, Chirukhi, Peranga) of different formation phases. Research was held using modern instrumental methods of analysis: UV spectrophotometer, Scanning Electron Microscopy, Centrifuge, Dry oven, Ultraturax. In the research extraction process of humic substances from sphagnum peat peloids was developed and composition of humic substances was studied, also E4/E6 humification coefficient was evaluated. Based on the results extraction conditions of humic substances from the peat peloids samples were determined: a) extragent with maximum yield - 1.0N NaOH; b) mixing type - KA-ULTRA TURAX-T18 - 20 000 rpm/min; c) Precipitant of humic substances -10% HCL. Composition of humic substances are studied in the samples and their relatively high content is determined in Anaklia and Churia sphagnum peat peloids. For characterization of humic substances E4/E6 humification coefficient was evaluated. Low ration of E4/E6 < 5 was established in anaklia, churia and ispani peat peloids. High ration of E4/E6 < 10 coefficient is determined in chirukhi and peranga peat peloids.
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