Nickel,Lead and Zinc Sorption in a Reclaimed Settling Pond Soil

作     者：Veronica ASENSIO Ruben FORJAN Flora Alonso VEGA Emma Fernandez COVELO 

作者机构：Department of Plant Biology and Soil ScienceFaculty of BiologyUniversity of VigoAs Lagoas-Marcosende36310 VigoPon-tevedra(Spain) Department Of Plant NutritionUniversity of Sdo Paulo-Center of Nuclear Energy in Agriculture(USP-CENA)134 00-970 Piracica-ba-SP(Brazil) 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2016年第26卷第1期

页      面：39-48页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

主　　题：metals mine soil retaining capacity tree vegetation waste amendment 

摘      要：The wastes used to amend soils sometimes have high concentrations of metals such as nickel(Ni), lead(Pb) and zinc(Zn). To determine the capacity of soils to retain these metals, the sorption capacities of different mine soils with and without reclamation treatments(tree vegetation and waste amendment) for Ni, Pb and Zn in individual and competitive situations were evaluated using the batch sorption technique. The untreated settling pond soil had low capacity for Ni, Pb and Zn retention. The site amended with wastes(sewage sludges and paper mill residues) increased the sorption capacity most, probably because of the higher concentrations of soil components with high retention capacity such as carbon and clay fraction. No significant competition was observed between metals in the competitive sorption experiment, indicating that the maximum of sorption was not achieved by adding 0.5 mmol L^(-1) of metal. We can conclude that, despite the possible additions of Ni, Pb and Zn from wastes to degraded soils, sewage sludges and paper mill residues have a high sorption capacity that would prevent the metals from being in a mobile form.