Di Palma Luca, Verdone Nicola, Vilardi Giorgio
Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184, Rome, Italy.
Bull Environ Contam Toxicol. 2018 Dec;101(6):692-697. doi: 10.1007/s00128-018-2394-5. Epub 2018 Jul 10.
The effect of soil composition on the reduction of hexavalent chromium (Cr(VI)) by zero valent iron nanoparticles was studied. A model was proposed, to investigate both the effect of manganese oxide and the simultaneous effect of manganese dioxide and soil organic matter on the kinetic of Cr(VI) reduction. Fe(0) nanoparticles consumption by the reaction with dissolved oxygen, water and soluble Cr(VI) was taken into account. The model was validated through experimental tests performed on soil samples collected at an industrial polluted site, and on artificially contaminated samples from the same site, in the presence of selected amount of leonardite.
研究了土壤成分对零价铁纳米颗粒还原六价铬（Cr(VI)）的影响。提出了一个模型，以研究氧化锰以及二氧化锰和土壤有机质对Cr(VI)还原动力学的同时影响。考虑了Fe(0)纳米颗粒与溶解氧、水和可溶性Cr(VI)反应导致的消耗。通过对在工业污染场地采集的土壤样品以及来自同一场地的人工污染样品进行实验测试，并在存在选定数量的软褐煤的情况下对该模型进行了验证。
