Journal
WASTE MANAGEMENT
Volume 31, Issue 11, Pages 2245-2252Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2011.06.018
Keywords
Vitrification; Sintering; Glass ceramics; Sewage sludge
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Pyrolysis of urban plant sewage sludge has been demonstrated to be an effective way to produce fuel gas. However, a complete disposal of this particular waste is not achieved if the solid residues from the treatment are not considered. In this paper we discuss the feasibility an integrated pyrolysis/vitrification/sintering approach, aimed at a full disposal: the pyrolysis residues are first converted into a glass, then transformed into glass-ceramics, by simple viscous flow sintering treatments, with or without additions of inexpensive recycled glasses and kaolin clay. The obtained products were demonstrated to constitute an alternative to natural stones, in terms of both mechanical strength and chemical stability. (C) 2011 Elsevier Ltd. All rights reserved.
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