The distribution of heavy metals during fluidized bed combustion of sludge

Manon Van de Velden, Jan Baeyens, L Josson, P Lanssens

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101 Citations (Scopus)


During combustion of wastewater treatment sludge, the inorganic constituents are converted into ash which contains the major fraction of the heavy metals present. The behaviour of heavy metals in combustion processes has been studied extensively for mostly coal combustion and waste incineration. For biomass and sludge, literature data are scarce and mostly limited to laboratory experiments. The present paper assesses the partitioning of eight heavy metals (Hg, As, Cd, Cu, Pb, Cr, Ni and Zn) in the different residues from a large-scale fluidized bed sludge combustor of 4.4 m i.d. The origin of the sludge is mostly from treating urban wastewaters (>90%), although some mixed sludge (urban + industrial,
Original languageEnglish
JournalJournal of Hazardous Materials
Publication statusPublished - 1 Jan 2007


  • partitioning
  • sludge
  • fluidized bed combustion
  • heavy metals


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