Production of sintered materials from air pollution control residues from waste incineration
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Air pollution control residues from waste incineration have been washed to remove excess chloride and other soluble salts and blended with combinations of soda lime glass and waste electrostatic precipitator dust containing boric oxide from the fibre-glass industry. Homogenous fine powder mixes have been pressed and sintered at temperatures between 900 and 1000 °C. The physical properties and microstuctural characteristics of the glass–ceramics formed have been assessed. The results show that it is possible to produce a dense glass–ceramic material containing wollastonite and gehlenite crystalline phases with a hardness of 4.5 GPa. The high density and hardness means that the glass–ceramic may have a potential use in high value construction products.
KeywordsMunicipal Solid Waste Inductively Couple Plasma Atomic Emission Spectroscopy Wollastonite Sintered Sample Inductively Couple Plasma Atomic Emission Spectroscopy
This work was completed with financial support from EPSRC (UK) and Rio Tinto Minerals/Borax Europe Ltd through an Industrial Case Award from the Resource Efficiency Knowledge Transfer Network (KTN), formerly the Mini-Waste Faraday Partnership. The experimental assistance of staff and colleagues at Imperial College London and Rio Tinto Minerals (Guildford, UK) is greatly appreciated. Mr Peter Lewis is acknowledged for the provision of APC residue samples.
- 1.Environmental Services Association (2005) Draft APC residue case study, DEFRA, https://doi.org/www.defra.gov.uk/environment/waste/hazforum/pdf/hwf-3-5iv.pdf, as on March 2005
- 5.European Waste Catalogue (2000) In: 2000/532/EC Google Scholar
- 10.Rouchotas E (2001) MSc thesis, Department of Civil and Environmental Engineering, Imperial College LondonGoogle Scholar
- 22.Rozenstrauha I, Wu JP, Boccaccini AR (2005) Glass Technol 46(3):248Google Scholar
- 24.Barbieri L, Corradi A, Lancellotti I, Pellacani GC, Boccaccini AR (2003) Glass Technol 44(5):184Google Scholar
- 25.Boccaccini AR, Schawohl J, Hern H, Schunck B, Rincon JM, Romero M (2000) Glass Technol 41(3):99Google Scholar
- 31.Wexell D, Vitrification of ash from waste-to-energy incinerators, Part II. Cold crown melting and parameters for scale-up, Pollution Prevention Resource Center Corning Inc., https://doi.org/www.pprc.org/pprc/rpd/statefnd/nyschwm/vitrific.html, as on 05/08/2005,
- 33.Rawlings RD, Boccaccini AR (2004) Glass Technol 45(2):108Google Scholar
- 34.Borax Consolidated Limited (1965) In: Glasses, 3rd ed., London, Borax Consolidated London, p 83Google Scholar