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Sorption Properties and Modification of Peat Humic Acids. Pp. 37–42.

 Версия для печати

Section: Chemistry

UDC

631.414-417, 544.723

Authors

Kuznetsova Irina Andreevna, Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia) 

Bogolitsyn Konstantin Grigoryevich, Northern (Arctic) Federal University named after M.V. Lomonosov; Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia) 

Larionov Nikolay Sergeevich, Institute of Theoretical and Applied Chemistry, Northern (Arctic) Federal University named after M.V. Lomonosov; Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia) 

Boitsova Tatyana Aleksandrovna, Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia) 

Palamarchuk Irina Anatolyevna, Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia) 

Brovko Olga Stepanovna, Institute of Ecological Problems of the North, Ural Branch of the Russian Academy of Sciences (Arkhangelsk, Russia)

Abstract

Influence of pH and ionic strength upon the sorption of Cd2+ and Pb2+ ions by humic acids was studied. Maximal sorption capacity of humic acids towards Cd2+ and Pb2+ proved to be 0.85 and 0.90 mmol/g, respectively. Modification of humic acids by the chitosan natural polymer helps to stabilize the complex, as well as to raise sorption capacity as compared to the humic acids up to almost 50%.

Keywords

oligotrophic peat, plant polymers, sorption, pH, ionic strength, heavy metals.

The full-text version of the article can be requested through the university’s library.

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