Calcium Fluoride Sludge Added into Ceramics Made with Serpentine and Kaolin Tailing Wastes
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 17, Issue 3
Abstract
To solve the problems with disposing of sludge and mine tailings, calcium fluoride sludge (CFS) was tested as a component for producing ceramics made by using serpentine tailing waste (STW) and kaolin tailing waste (KTW). Converting CFS and tailing wastes into ceramic as a construction material not only reduced producing cost by the utilization of wastes as secondary raw materials, but also solved the environmental concerns associated with sludge and tailing. The purpose of this research was to develop a process to manufacture ceramic products using CFS STW, and KTW by sintering technology. The ceramic properties were analyzed by thermal analysis, X-ray diffraction, compressive strength measurement, morphological structure analysis, adsorbing water ratio, toxicity characteristic leaching procedure, and corrosion resistance in acid and alkaline solutions. Results indicated that the sintered ceramic reached the standards of a construction material. Therefore, converting CFS, STW, and KTW into ceramic products are in accordance with the concept of sustainable development.
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Acknowledgments
The authors are grateful for support of the key subject of Shanghai Municipality (S30109), the Opening Project of Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education (12zxgk09) and Shanghai Science and Technology Commission (10dz1205302).
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Information & Authors
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Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 17 • Issue 3 • July 2013
Pages: 245 - 250
Copyright
© 2013 American Society of Civil Engineers.
History
Received: May 11, 2012
Accepted: Oct 1, 2012
Published online: Oct 3, 2012
Published in print: Jul 1, 2013
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