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Sorption of strontium on bentonite
Waste Management, 1995
Sorption of Sr on bentonite was studied using the batch technique. Distribution coefficients (Kd)... more Sorption of Sr on bentonite was studied using the batch technique. Distribution coefficients (Kd) were determined as a function of contact time, pH, sorbent and sorbate concentration and temperature. The data were interpreted in terms of Freundlich, Langmuir and Dubinin-Radushkevich isotherms. Thermodynamic parameters for the sorption system were determined at three different temperatures. The positive value of the heat of
Journal of Radioanalytical and Nuclear Chemistry Articles, 1995
Ar ti fi cially con tam i nated soil, with mix ture of Co(II) and Sr(II) ions in dif fer ent pro ... more Ar ti fi cially con tam i nated soil, with mix ture of Co(II) and Sr(II) ions in dif fer ent pro portions, was tested. The main aim was to in ves ti gate the pos si bil ity of ethylenediaminetetraacetic acid (EDTA) uti li za tion in the chem i cal ex trac tion pro cess as a method for soil remediation in the case of mixed con tam i na tion. The ef fi ciency of this pro cess when EDTA of 5×10 -4 molL -1 was used was low, while the ap pli ca tion of the EDTA so lu tion of the ini tial concen tra tion 5×10 -3 molL -1 or higher showed al most the same ef fi ciency. This sug gested that the ap pli ca tion of the so lu tion EDTA (5×10 -3 molL -1 ) is op ti mal from the as pect of cost and degra da tion of soil prop er ties. Fur ther more, pro cess ki netic was fit ted us ing one pa ram e ter shrink ing core mod els. Ki netic data mod el ing showed that the pro cess is com plex, de mand ing multi re sis tance ki netic model.
Sorption of strontium on bentonite
Waste Management, 1995
Sorption of Sr on bentonite was studied using the batch technique. Distribution coefficients (Kd)... more Sorption of Sr on bentonite was studied using the batch technique. Distribution coefficients (Kd) were determined as a function of contact time, pH, sorbent and sorbate concentration and temperature. The data were interpreted in terms of Freundlich, Langmuir and Dubinin-Radushkevich isotherms. Thermodynamic parameters for the sorption system were determined at three different temperatures. The positive value of the heat of
Journal of Radioanalytical and Nuclear Chemistry Articles, 1995
Ar ti fi cially con tam i nated soil, with mix ture of Co(II) and Sr(II) ions in dif fer ent pro ... more Ar ti fi cially con tam i nated soil, with mix ture of Co(II) and Sr(II) ions in dif fer ent pro portions, was tested. The main aim was to in ves ti gate the pos si bil ity of ethylenediaminetetraacetic acid (EDTA) uti li za tion in the chem i cal ex trac tion pro cess as a method for soil remediation in the case of mixed con tam i na tion. The ef fi ciency of this pro cess when EDTA of 5×10 -4 molL -1 was used was low, while the ap pli ca tion of the EDTA so lu tion of the ini tial concen tra tion 5×10 -3 molL -1 or higher showed al most the same ef fi ciency. This sug gested that the ap pli ca tion of the so lu tion EDTA (5×10 -3 molL -1 ) is op ti mal from the as pect of cost and degra da tion of soil prop er ties. Fur ther more, pro cess ki netic was fit ted us ing one pa ram e ter shrink ing core mod els. Ki netic data mod el ing showed that the pro cess is com plex, de mand ing multi re sis tance ki netic model.