Re-adsorption of heavy metals in the determination of their mobile forms in ordinary chernozem
Abstract
Re-adsorption of heavy metals in the determination of their mobile forms in ordinary chernozem
Incoming article date: 25.12.2016"We studied heavy loamy calcareous ordinary chernozem developed from the loess-like loam at the Donskoe training farm in Rostov oblast. Samples from the plow (0–20 cm) layer were used in the experiment. The soil samples were contaminated with 300 mg/kg of Cu, Zn and Pb introduced in combination. The metals were introduced in the form of acetates. In was showed that under static conditions, ammonium acetate does not extract the entire stock of mobile elements. In dynamic conditions Cu, Zn и Pb were more extracted. The degree of extractable metals by ammonium acetate buffer from the soil in background and polluted soil can be presented in a series: Zn> Pb> Cu."
Keywords: soil, readsorbtion, heavy metals, zinc, copper, lead, extraction