Application of Humate-Containing Agent for Sorbing Trace Metals in Simulated Solutions and Surface Waters from Tunnels at the ‘Degelen’ Site
Dyussembayeva M. Shakenov Y. Kolbin V. Tashekova A. Aidarkhanov A. Dzhusipbekov U. Nurgalieva G. Bayakhmetova Z. Duisenbay D. Aksakalova U.
August 2025Multidisciplinary Digital Publishing Institute (MDPI)
Sustainability (Switzerland)
2025#17Issue 15
This article presents the potential use of a humic agent called ‘Superhumate’, obtained from weathered coal from the Shubarkol deposit in Kazakhstan. The experiment was conducted using model solutions and surface mine water samples from the “Degelen” site at the Semipalatinsk Test Site. The adsorption of heavy metals and toxic elements using the “Superhumate” agent was carried out under dynamic conditions using a chromatographic column. Tests were conducted at a natural pH range of 5–8 (mine waters) and with a model solution at pH 1.7. Assessing the sorption efficiency of this preparation revealed that at pH 1.7, the agent does not adsorb elements such as Cd, Cu, Pb, and Zn. Under dynamic experimental conditions, using the preparation for mine waters at natural pH levels (pH 5–8), elements such as Be, Sr, Mo, Cd, Cs, Zn, and U were efficiently adsorbed at levels of 60–95%. The sorption efficiency of Pb ions was found to be almost independent of pH. The experimental results obtained with mine water samples indicate that alkaline solutions have the highest sorption efficiency, with pH ≥ 7, which is attributed to the solubility of the agent.
heavy metals , humates , natural pH , Semipalatinsk Test Site , sorption , sorption capacity , tunnel water treatment
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Ecological and Analytical Research Department, The Institute of Radiation Safety and Ecology of the National Nuclear Center of the Republic of Kazakhstan, Kurchatov, 180010, Kazakhstan
Laboratory of Chemistry of Fertilizers and Salts, Institute of Chemical Sciences Named After A.B. Bekturov, Almaty, 050010, Kazakhstan
Ecological and Analytical Research Department
Laboratory of Chemistry of Fertilizers and Salts
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