Reduction of metal leaching in brown coal fly ash using geopolymers

Bankowski, P., Zou, Linda and Hodges, R. 2004, Reduction of metal leaching in brown coal fly ash using geopolymers, Journal of hazardous materials, vol. 114, no. 1, pp. 59-67, doi: 10.1016/j.jhazmat.2004.06.034.

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Title Reduction of metal leaching in brown coal fly ash using geopolymers
Author(s) Bankowski, P.
Zou, Linda
Hodges, R.
Journal name Journal of hazardous materials
Volume number 114
Issue number 1
Start page 59
End page 67
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2004-10
ISSN 0304-3894
Summary Current regulations classify fly ash as a prescribed waste and prohibit its disposal in regular landfill. Treatment of the fly ash can reduce the leach rate of metals, and allow it to be disposed in less prescribed landfill. A geopolymer matrix was investigated as a potential stabilisation method for brown coal fly ash. Precipitator fly ash was obtained from electrostatic precipitators and leached fly ash was collected from ash disposal ponds, and leaching tests were conducted on both types of geopolymer stabilised fly ashes. The ratio of fly ash to geopolymer was varied to determine the effects of different compositions on leaching rates.
Language eng
DOI 10.1016/j.jhazmat.2004.06.034
Field of Research 090703 Environmental Technologies
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, Elsevier B.V.
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