References of "Bareel, Pierre-François"
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See detailBio hydrometallurgical recovery of metals from Fine Shredder Residues
Lewis, Grégory ULg; Gaydardzhiev, Stoyan ULg; Bareel, Pierre-François et al

in Minerals Engineering (2011), Vol 24, Issue 11

The leaching step of an integrated hydrometallurgical process for the selective recovery of metals from polymetallic concentrates has been investigated. The concentrate has been produced by physical ... [more ▼]

The leaching step of an integrated hydrometallurgical process for the selective recovery of metals from polymetallic concentrates has been investigated. The concentrate has been produced by physical treatment of Fine Shredder Residues derived from a shredding plant processing a mixed feed. Bacterially assisted leaching experiments using a copper-adapted consortium of mesophilic bacterial strains have been carried out. Various technological parameters have been studied. Under optimal conditions about 95 % extraction levels for copper and zinc have been obtained. Bacterial presence has been found beneficial in view catalysing copper dissolution. [less ▲]

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See detailCopper extraction from scrap cables by biotechnological means
Gaydardzhiev, Stoyan ULg; Bastin, David ULg; Bareel, Pierre-François

in Proceedings of the XXV International Mineral Processing Congress (2010, September)

The papaer reports on laboratory results regarding bio leaching of metallic copper from cable-bearing scraps derived from recycling of end-of-life vehicles. The copper has been met in pure form as ... [more ▼]

The papaer reports on laboratory results regarding bio leaching of metallic copper from cable-bearing scraps derived from recycling of end-of-life vehicles. The copper has been met in pure form as irregular shaped wires often coated with tin. The complex nature of the material renders both gravity and physicochemical separation unsuitable for efficient copper separation. Hence a bacterially assisted leaching with mixed consortium of mesophylic microorganisms has been tested for recevery of the remaining copper. Continuous adaptation of the cultures to the substrate has been envisaged in order to guarantee sufficient degree of ferric iron regeneration by bacteria during leaching. It has been established that under optimal leaching conditions such as acid consumption, pulp density, pH and temperature, it is possible to recover nearly 98 % of the copper in solution within acceptable leaching duration. [less ▲]

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See detailBiosolubilization of copper from waste electric cables
Gaydardzhiev, Stoyan ULg; Bastin, David ULg; Goffinet, Florence ULg et al

in Harre, Jens (Ed.) Proceedings of the Copper 2010 International Conference (2010, June)

The paper reports on results from a laboratory tests for bacterial leaching of copper from scrap cables. The studied material is a reject fraction obtained after dismantling and separation of electric ... [more ▼]

The paper reports on results from a laboratory tests for bacterial leaching of copper from scrap cables. The studied material is a reject fraction obtained after dismantling and separation of electric cables during recycling of end-of-life vehicles (ELV). The copper has been met predominately in pure metallic form as tiny irregular shaped wires often coated with tin and well liberated from the plastic isolations. For bringing copper in solution, a bacterially assisted agitative leaching with mixed consortium of mesophylic microorganisms has been chosen. Continuous bacterial adaptation of the cultures to the substrate has been envisaged in order to provide an efficient way for ferrous iron regeneration during the leaching. It has been established that under optimal conditions of pH, density and temperature it is possible to recover nearly the total copper within short leach duration. The obtained pregnant leach solution could be subjected to subsequent copper recovery via solvent extraction, while the solid leached residue could be considered as non-metallic material containing plastics suitable for recycling. [less ▲]

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See detailSampling of Fine Shredder Residues (FSR) and Characterization Oriented to Physical Separations
Bareel, Pierre-François; Bastin, David ULg; Bodson, Claude et al

in Proceedings of the Sohn International Symposium on Advanced Processing of Metals and Materials: Principles, Technologies and Industrial Practice (2006)

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See detailPotential valorization for the finest particles of Automotive Shredder Residues
Bareel, Pierre-François; Mordant, Bruno; Bastin, David ULg et al

in Acta Metallurgica Slovaca (2004), 2

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See detailPotential valorization for the finest particles of Automotive Shredder Residue (ASR) as filler in bituminous concrete
Bareel, Pierre-Francois; Courard, Luc ULg; Bastin, David ULg et al

in Proceedings of REWAS'04 - Global Symposium on Recycling, Waste Treatment and Clean Technology (2004)

Car manufacturers are faced with increasingly severe European regulations concerning End of Live Vehicles (ELV) recycling. Issues for the coarse fractions of Automotive Shredder Residue (ASR) are now ... [more ▼]

Car manufacturers are faced with increasingly severe European regulations concerning End of Live Vehicles (ELV) recycling. Issues for the coarse fractions of Automotive Shredder Residue (ASR) are now quite largely studied. However, the European objectives could only be achieved by considering the processing and valorization of the fine ASR fraction (< 2mm) which usually represents 5 to 10 wt.% of shredded ELV. A laboratory study was carried out on the fine ASR fraction. By combining granulometric, gravimetric and magnetic separations, four valorizable fractions were identified. This paper presents the valorization of the finest fraction (< 250 μm) as filler in bituminous concrete. Physical and chemical properties were first determined. Bituminous concrete samples were then prepared with different substitution levels of calcareous filler by fine ASR. Marshall tests (mechanical properties) and leaching tests were performed without compromising results. [less ▲]

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See detailPotential valorization of the fine light fraction of automotive shredder residues (ASR)
Bareel, Pierre-François; Bastin, David ULg; Frenay, Jean ULg

in Proceedings of the International Symposium of Metals and Energy Recovery (2003)

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