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has been cited by the following article:

• TITLE: Fungal Leaching of Heavy Metals from Sediments Dredged from the Deûle Canal, France

  AUTHORS: Nada Sabra, Henri-Charles Dubourguier, Tayssir Hamieh

  KEYWORDS: Sediments; Heavy Metals; Depollution; Filamentous Fungi; Indegenous Organotrophic Bacteria; Sugar; Bioleaching; Organic Acids; Bacterial Acids

  JOURNAL NAME: Advances in Chemical Engineering and Science, Vol.2 No.1, December 31, 2011

  ABSTRACT: Filamentous fungi were used to leach heavy metals from dredged sediments in semi-pilot scale air-lift bioreactors. Prior to the bioleaching experiments, a physico-chemical characterization of the sediments comprising a sequential extraction study was conducted. The sediments turned out to highly contaminated with heavy metals. Most of the studied metals were found to be strongly linked to the matrix because of their association with the sulphides and with the organic matter. The conditions that favored the solubilization of heavy metals by the filamentous fungi turned out to be favorable for the activity of the sediments organotrophic bacterial microflora as well. The latter played a key role in the biosolubilization process by producing organic acids under temporary anoxic conditions. Better solubilization results (Mn: 77%, Zn: 44%, Cu: 12%, Cd and Pb: