Aluminium Determination and Speciation Modelling in Groundwater from the Area of a Future Radioactive Waste Repository

作者：Marin Constantin^*; Tudorache Alin; Vladescu Luminita

来源：Revista de Chimie, 2010, 61(5): 431-438.

• aluminium
• determination
• speciation
• groundwater
• saturation index

A study of aluminium concentration distributions in natural groundwater has been conducted, by considering samples collected from the area located in the neighbourhood of Saligny village (Cernavoda-Romania). A GF-AAS method has been developed, tested and used for aluminium content determination. Based on the complete analysis results of the considered groundwater samples, the distribution of the aluminium inorganic species in groundwater has been evaluated. In order to determine the aluminium speciation in the analyzed waters, besides the chemical species included in the PHREEQC code databases, also other ionic associations that aluminium formed with Si species, SO(4)(2-), F(-), Na(+) and K(+) ions were considered. The distribution of the water saturation index values calculated on this basis suggests that some mineral species of the red clay layers tend to render soluble when the groundwater is mixed with the surface water.

• 出版日期2010-5