Use of BCR sequential extraction procedures for soils and plant metal transfer predictions in contaminated mine tailings in Sardinia

2017 ◽  
Vol 172 ◽  
pp. 133-141 ◽  
Author(s):  
Emilia Fernández-Ondoño ◽  
Gianluigi Bacchetta ◽  
Antonio M. Lallena ◽  
Francisco B. Navarro ◽  
Irene Ortiz ◽  
...  
Keyword(s):  
Sequential Extraction ◽  
Mine Tailings ◽  
Metal Transfer ◽  
Bcr Sequential Extraction ◽  
Extraction Procedures ◽  
Sequential Extraction Procedures

Incorporation of Cadmium into Clinker during the Co-Processing of Waste with Cement Kiln

2011 ◽  
Vol 347-353 ◽  
pp. 2160-2164
Author(s):  
Lei Wang ◽  
Run Dong Li ◽  
Yan Long Li ◽  
Li Hong Wei
Keyword(s):  
Sequential Extraction ◽  
Xrd Analysis ◽  
Residual Fraction ◽  
Cement Kiln ◽  
Mineral Phase ◽  
Bcr Sequential Extraction ◽  
Leaching Potential ◽  
Extraction Procedures ◽  
Sequential Extraction Procedures ◽  
Incorporation Ratio

The incorporation of cadmium into clinker during the co-processing of waste with cement kiln was investigated. Cadmium contained reagent was added to the cement raw meal to produce clinkers after clinkerization process. XRD analysis and SEM-EDS analysis were employed to indentify the major mineral phase of clinker and the cadmium contained mineral phase. Leaching test, sequential extraction procedures were employed to evaluate the leaching potential of cadmium in clinker. The results show the stabilization rate of cadmium during the clinkerization process is low. The incorporation ratio of cadmium in C2S is 0.32%~1.14%, the incorporation ability of cadmium in C2S is higher than C3S. The major mineral phases of clinker with the incorporation of cadmium were CH, C3S and C2S. The average leaching concentration of cadmium of clinker was 1.4 μg/L, which was higher than the blank samples. BCR Sequential extraction procedures analysis of the clinkers show exchangeable, water and acid-soluble fraction and residual fraction were very small, while the reducible phase of cadmium was up to 95.13%.

The Use of Sequential Extraction Procedures for the Characterization and Management of Contaminated Soils

2005 ◽  
Vol 95 (7-8) ◽  
pp. 525-538 ◽  
Author(s):  
Ornella Abollino ◽  
Agnese Giacomino ◽  
Mery Malandrino ◽  
Edoardo Mentasti
Keyword(s):  
Sequential Extraction ◽  
Contaminated Soils ◽  
Extraction Procedures ◽  
Sequential Extraction Procedures
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