Interaction of humic compounds with constant and variable valence metals in acidic solutions


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Abstract

The mechanism of the interaction of the humic substances (HSs) of peat and brown coal with the ions of constant (Zn and Pb) and variable valence (Cu, Cr, Co, and Ni) metals in acidic solutions (pH 2) was studied. It was established that the constant valence metals weakly interacted with HSs by an ion-exchange mechanism. However, the variable valence metal ions in an aqueous medium also interacted with the polyconjugation systems of HSs to create prerequisites for developing sorbents based on the HSs of caustobioliths for variable valence metals in acidic solutions.

About the authors

I. I. Lishtvan

Institute for Nature Management

Email: yanuta@tut.by
Belarus, Minsk, 220114

V. P. Strigutskii

Institute for Nature Management

Email: yanuta@tut.by
Belarus, Minsk, 220114

Yu. G. Yanuta

Institute for Nature Management

Author for correspondence.
Email: yanuta@tut.by
Belarus, Minsk, 220114

A. M. Abramets

Institute for Nature Management

Email: yanuta@tut.by
Belarus, Minsk, 220114

V. N. Aleinikova

Institute for Nature Management

Email: yanuta@tut.by
Belarus, Minsk, 220114

A. S. Pershai

Institute for Nature Management

Email: yanuta@tut.by
Belarus, Minsk, 220114

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