Production of fulvic acids by peat oxidative destruction method
Abstract
A method for increasing the yield of fulvic acids from peat raw materials is proposed. On the basis of studies of group composition of the most typical and widespread peats in Belarus it is shown that humic acids contain up to 45 % of organic matter in them, while the yield of fulvic acids is low and contains about 15 % in the most humified samples. In order to use fulvic acids for practical purposes it is necessary to develop methods to increase their yield from raw materials. Oxidative destruction of peat by hydrogen peroxide was carried out as the most effective, easy to implement and not polluting the reaction medium with oxidizing by-products.
Hydrogen peroxide in the amount of 0.9–1.0 mass parts in relation to peat dry mass was applied to sedge and downy peat with the degree of decomposition of 30–35 %, moisture content in the range of 40–70 %, with the fractional injection of 10–25 % of the full dose followed by thorough mixing. The amount of water- and acid-soluble compounds significantly increases in the preparations obtained after treatment. The technique of the estimation of the amount of soluble substances after peat oxidative destruction, the yield of which was more than 20 %, was developed.
About the Authors
V. M. Kraiko
Institute of Nature Management of the National Academy of Sciences of Belarus
Belarus
Belarus
Valiantsina M. Kraiko – Ph. D. (Technical), Senior Researcher, Associate Professor
10, F. Skoriny Str., 220076, Minsk
V. M. Dudarchik
Institute of Nature Management of the National Academy of Sciences of Belarus
Belarus
Belarus
Vladimir M. Dudarchik – Ph. D. (Technical), Senior Researcher, Associate Professor
10, F. Skoriny Str., 220076, Minsk
A. V. Anufrieva
Institute of Nature Management of the National Academy of Sciences of Belarus
Belarus
Belarus
Alena V. Anufrieva – Researcher
10, F. Skoriny Str., 220076, Minsk
E. L. Dudnikova
Institute of Nature Management of the National Academy of Sciences of Belarus
Belarus
Belarus
Evgeniya L. Dudnikova – Researcher
10, F. Skoriny Str., 220076, Minsk
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Review
For citations:
Kraiko V.M., Dudarchik V.M., Anufrieva A.V., Dudnikova E.L. Production of fulvic acids by peat oxidative destruction method. Nature Management. 2025;(1):190-195. (In Russ.)
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