Efficiency of organic and mineral based amendments to reduce metal[loid]mobility and uptake (Lolium perenne) from a pyrite-waste contaminated soil

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• 作者：Eduardo Moreno-Jim&eacute ; nez^a ; Rodrigo Sepú ; lveda^a ; Elvira Esteban^a ; Luke Beesley^b ;
• 关键词：Metals ; Arsenic ; Soil remediation ; Iron Oxides ; Phosphorus ; Compost
• 刊名：Journal of Geochemical Exploration
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：174
• 期：Complete
• 页码：46-52
• 全文大小：1081 K
• 卷排序：174

文摘

Mineral and organic amendments were applied to a multi metal[loid] contaminated mine soil [spoil] in a 90 day pot trial. Iron (Fe) based amendments reduced Cd and Cu concentrations in pore water furthest compared to the untreated mine spoil. Fe(II) + CaCO3 was highly efficient at reducing metal[loid] concentration in ryegrass tissue and increasing biomass yield. Phosphorus (P) based amendments generally had no significant impact on ryegrass biomass whilst compost mobilised As into pore water. Thus Fe(II) + CaCO3 amendment should be considered in field-remediation trials at the studied mine site.