Co-pyrolysis of fly ash with sewage sludge for PCDD/F removal.

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  • Author(s): Hsieh CH;Hsieh CH; Trinh MM; Trinh MM; Chang MB; Chang MB
  • Source:
    Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Jun; Vol. 31 (27), pp. 39432-39438. Date of Electronic Publication: 2024 May 31.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Springer Country of Publication: Germany NLM ID: 9441769 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1614-7499 (Electronic) Linking ISSN: 09441344 NLM ISO Abbreviation: Environ Sci Pollut Res Int Subsets: MEDLINE
    • Publication Information:
      Publication: <2013->: Berlin : Springer
      Original Publication: Landsberg, Germany : Ecomed
    • Subject Terms:
      Coal Ash*/chemistry ; Sewage*/chemistry ; Polychlorinated Dibenzodioxins* ; Incineration* ; Pyrolysis*
    • Abstract:
      Fly ash generated from municipal waste incineration (MWI) contains various toxic substances, and it has to be properly treated before disposal or reuse. Water washing and thermal pyrolysis can improve the destruction efficiency of PCDD/Fs in fly ash generated from municipal solid waste incinerators. Since sulfur oxides and nitrogen compounds generated by the heating of the sewage sludge poison the catalytic active sites for PCDD/Fs formation on fly ash surface, co-pyrolysis of fly ash with sewage sludge effectively inhibits precursor formation and de novo synthesis reaction, resulting in the great reduction of PCDD/F formation. The results of the pyrolysis at 350 °C show that the PCDD/Fs removal efficiencies based on mass concentration are over 99%. The results at 350 °C of different reaction times show that the reaction time of 10 min is sufficient to reach the European End of Waste criteria (≤ 20 pg TEQ/g) when the ratio of fly ash/sewage sludge is controlled at 1:1.
      (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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    • Grant Information:
      NSTC 108-2221-E-008-059-MY3 National Science and Technology Council; NSTC 111-2221-E-008 -046 -MY3 National Science and Technology Council
    • Contributed Indexing:
      Keywords: De novo inhibition; Fly ash; PCDD/Fs; Pyrolysis; Sewage sludge
    • Accession Number:
      0 (Coal Ash)
      0 (Sewage)
      0 (Polychlorinated Dibenzodioxins)
    • Publication Date:
      Date Created: 20240531 Date Completed: 20240619 Latest Revision: 20240619
    • Publication Date:
      20240619
    • Accession Number:
      10.1007/s11356-024-33793-x
    • Accession Number:
      38819506