Incubation of air-pollution-control residues from secondary Pb smelter in deciduous and coniferous organic soil horizons: Leachability of lead, cadmium and zinc

详细信息    查看全文

• 作者：Vladislav Chrastný ; ^a ; ^b ; ^{vladislavchrastny@seznam.cz} ; Ale&scaron ; Van¨§k^c ; Michael Komá ; rek^b ; Juraj Farka&scaron ; ^d ; Ond?ej Drá ; bek^c ; Petra Vokurková ; ^c ; Jana N¨§mcová ; ^e
• 关键词：Air-pollution-control residues ; Metals ; Organic soil horizons ; Humic acids ; Fulvic acids
• 刊名：Journal of Hazardous Materials
• 出版年：2012
• 出版时间：30 March, 2012
• 年：2012
• 卷：209-210
• 期：Complete
• 页码：40-47
• 全文大小：401 K

文摘

The leachability of air-pollution-control (APC) residues from a secondary lead smelter in organic soil horizons (F and H) from a deciduous and a coniferous forest during incubation periods of 0, 3 and 6 months were compared in this work. While the concentration of Pb, Zn and Cd associated with the exchangeable/acid extractable fraction in the horizon F from the coniferous forest was higher compared to the deciduous, significantly lower concentrations in the humified horizon H was found. It is suggested that lower pH and a higher share of fulvic acids fraction (FAs) of solid phase soil organic matter (SOM) in the humified soil horizon H from the coniferous compared to the deciduous forest is responsible for a higher metal association with solid phase SOM and therefore a lower metal leaching in a soil system. From this point of view, the humified soil horizon H from the deciduous forest represents a soil system more vulnerable to Pb, Zn and Cd leaching from APC residues.