Research Article
Jan 1979
Environmental Considerations for Fly Ash Disposal
Publication: Journal of the Energy Division
Volume 105, Issue 1
Abstract
Recent concern about subsurface leaching from fly ash disposal sites has generated research to investigate this phenomenon. Among the constituents of the leachate are soluble heavy metals that are found in high concentrations on many fly ashes. This paper reviews those factors which are most important in heavy metal release and reports on some results from a leachate field investigation at an active disposal pond. The pH, which may be determined by the acid-base characteristics of the fly ash, degree of surface concentration of metals, presence of complexing agents, and soil physical and chemical properties are seen as the major considerations affecting leachate quality and quantity. Alternatives which include the use of lining materials, addition of chemicals to sluice water, conversion to a dry handling system, and selective mixing of fly ashes are considered as possible disposal strategies if greater control is deemed necessary.
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Published In
Journal of the Energy Division
Volume 105 • Issue 1 • January 1979
Pages: 47 - 61
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Jan 1979
Published online: Jan 13, 2021
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Authors
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Thomas L. Theis
Asst. Prof., Dept. of Civ. Engrg., Univ. of Notre Dame, Notre Dame, Ind.
Jerry J. Marley, M.ASCE
Assoc. Prof., Dept. of Civ. Engrg., Univ. of Notre Dame, Notre Dame, Ind.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.