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Environ Technol
December 2010
Grenoble University of Innovation, LEPMI (UMR 5631 CNRS-INP Grenoble-UJF), BP 75, 38402 St Martin d'Hères, France.
Metal pollution of solid matrices, like soils, sediments and sludge, is widespread across the globe, and the clean-up of these matrices presents many difficulties. The aim of this study was to develop an efficient leaching technique for metal removal from an industrial carbon sludge contaminated with Zn (8600 mg kg(-1)) and Pb (389 mg kg(-1)). To this end, the possibility of coupling processes, such as extraction with mineral acids, EDTA addition, ultrasound and bioleaching, was investigated.
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