Role of Biomolecules in Influencing Transformation Mechanisms of Metals and Metalloids in Soil Environments

摘要：

Characterizing the factors which affect the mobility, bioavailability, leaching and toxicity of metals and metalloids in soil environments is of paramount importance. Special attention is devoted to the influence of biomolecules, mainly roots exudates, as well as pH, nature of the sorbents, redox reactions on the transformation mechanisms of trace elements in cationic and anionic forms in soils. Time of reaction and the surface coverage have a great influence on the sorption/desorption processes of trace elements in the presence of organic ligands. Leaching and extraction tests are widely used for assessing trace element phytoavailability.

关键词： Heavy metals and metalloids Soil components Adsorption/desorption processes Biomolecules Phytoavailability

作者: Antonio Violante

作者单位: Dipartimento di Scienze del Suolo,della Pianta e dellAmbiente,Università di Napoli Federico II,80055 Portici (Napoli),Italy

会议类型: 国际会议

会议名称: The International Symposium of Molecular Environmental Soil Science at the Interfaces in the Earths Critical Zone(地球关键区界面反应：分子水平环境土壤科学国际会议)

会议地点: 杭州

会议语种:英文

页码: 43-46

在线出版日期: 2009-10-10（万方平台首次上网日期，不代表论文的发表时间）