Research Article
Apr 1978
Characteristics of Stabilized Scrubber Sludges
Authors: Tien-Yung J. Chu, Dick Y.-G. Chen, Dennis W. Weeter, AM.ASCE, Belve Dan Marks, AM.ASCE, and Richard J. Ruane, AM.ASCEAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 104, Issue 4
Abstract
Fly ash, lime, and silica were added to sludge from lime scrubbing process to improve handling and stabilization of sludge for disposal. The addition of fly ash alone does not improve the sludge settling, but does improve sludge filtration. Direct shear tests were made to observe the strength properties of treated sludges as a function of curing time. The lime scrubber sludge was stabilized by adding: (1)Lime and fly ash; or (2)lime, fly ash, and silica. The resulting strength is comparable to that of overconsolidated clays. The pozzolanic reaction and the new gel or crystal formation observed in the stabilized sludges was identified by X-ray diffractometry, scanning electron microscopy, and energy dispersive X-ray analyses. Leachate tests and permeability measurements were performed on raw and stabilized sludges to assess the possible contamination of ground water by toxic elements.
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Information
Published In
Journal of the Environmental Engineering Division
Volume 104 • Issue 4 • April 1978
Pages: 731 - 747
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Apr 1978
Published online: Feb 11, 2021
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Authors
Affiliations
Tien-Yung J. Chu
Environmental Engr., Special Projects and Research Program, Water Quality and Ecology Branch, Tennessee Valley Authority, Chattanooga, Tenn.
Dick Y.-G. Chen
Development Engr., Envirotech Research Center, Eimco Processing Machinery Div., Salt Lake City, Utah
Dennis W. Weeter, AM.ASCE
Assoc. Prof., Dept. of Civ. Engrg., The Univ. of Tennessee, Knoxville, Tenn.
Belve Dan Marks, AM.ASCE
Assoc. Prof., Dept. of Civ. Engrg., The Univ. of Tennessee, Knoxville, Tenn.
Richard J. Ruane, AM.ASCE
Program Mgr., Special Projects and Research Program, Water Quality and Ecology Branch, Tennessee Valley Authority, Chattanooga, Tenn.
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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.
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