Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
580880 | Journal of Hazardous Materials | 2010 | 9 Pages |
Abstract
Regarding the carbonation of paint waste-lime formulations, a mathematical expression has been proposed to predict the results of the leachability of DOC from carbonated mixtures working at water/solid ratios from 0.2 to 0.6. However, lower DOC concentrations in leachates (400Â mg/kg DOC in L/SÂ =Â 10 batch leaching test) were obtained when carbonation of paint waste-lime-fly-ash mixtures was used at 10Â h carbonation and water to solid ratio of 0.2. The flammability characteristics, the total contents of contaminants and the contaminant release rate in compliance leaching tests provide evidence for a final product suitable for deposition in non-hazardous landfills. The characterization of this carbonated sample using a dynamic column leaching test shows a high stabilization of metals, partial immobilization of Clâ, SO42â, Fâ and limited retention of DOC. However, the obtained results improve the previous findings obtained after the paint waste S/S using uncarbonated formulations and would be a useful pre-treatment technique of the alkyd paint waste prior to its disposal in a landfill.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
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Authors
R. Arce, B. Galán, A. Coz, A. Andrés, J.R. Viguri,