Stabilization/Solidification of Noncombustible Industrial Waste by Asphalt Emulsions
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 8, Issue 1
Abstract
A procedure for stabilization/solidification of loose waste from the manufacture of Ni and Cd electrodes, which represents a nonutilizable and noncombustible hazardous waste, has been worked out. The procedure comprises solidifying the waste by means of an anionic slow-setting aqueous-asphalt emulsion with subsequent formation of an asphalt coating on the surface of solidified waste by spraying with an anionic rapid-setting aqueous-asphalt emulsion. This asphalt coating represents a secondary barrier against leaching of pollutants into the environment. Results of leachability tests with water (Czech Republic regulations) as well as with acetic acid (toxicity characteristic leaching procedure test, EPA) are evidence of the successful stabilization of given waste. Values of determined leachability parameters of test specimens prepared from stabilized waste are very favorable and, in addition, virtually the same as those of blank test. This demonstrates, in a convincing manner, efficiency of the developed stabilization/solidification procedure. Results have also shown the toxicity characteristic leaching procedure test is indispensable for the assessment of toxic metals leachability. Performed tests have shown a marked drop in ecotoxicity from relatively high toxicity of untreated waste leachate to low toxicity of stabilized waste leachate.
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References
Asphalt Institute and Asphalt Emulsion Manufacturers Association (AEMA). (1997). Basic asphalt emulsion manual, 3rd Ed., AEMA, Annapolis, Md., 5.
Conway, M. F.(1993). “Bench-scale evaluation of asphalt emulsion stabilization of contaminated soils.” J. Soil Contaminat, 2, 1–9.
International Organization for Standardization (ISO). (1995). “Water quality—Pseudomonas putida growth inhibition test.” ISO 10712, Geneva, Switzerland.
Means, J. L., Smith, L. A., and Nehring, K. W. (1995). The application of solidification/stabilization to waste materials, Lewis, Boca Raton, Fla., 1–9, 71, 133, and 165–172.
Meegoda, N. J.(1999). “Stabilization/solidification of petroleum-contaminated soils with asphalt emulsions.” Pract. Period. Hazard., Toxic, Radioact. Waste Manage., 3(1), 46–55.
Nicolle, H. G. M., and Pankhurst, E. S. (1977). “Bitumen versus coal tar for pipeline coatings: Biological aspects.” 2nd Int. Conf., Internal and External Protection of Pipes, Univ. of Kent at Canterbury, Kent, U.K.
Sawada, K., Matsuda, H., and Mizutani, M.(2001). “Immobilization of lead compounds in fly ash by mixing with asphalt, sulfur, and sodium hydroxide.” J. Chem. Eng. Jpn., 34(7), 878–883.
Shell Bitumen. (1995). The Shell Bitumen industrial handbook, Design and Print Partnership Ltd., Surrey, U.K., 388–395, 343 and 348, 341–355.
Vondruska, M., Bednarik, V., Samsonek, J., and Houser, J.(2000). “Stabilization/solidification of salt from waste incinerator.” J. Air Waste Manage. Assoc., 50, 453–458.
Vondruska, M., Sebok, T., Kotasek, J., and Samsonek, J.(1998). “Stabilization of incinerator ash with high chromium (VI) content.” Pract. Period. Hazard., Toxic, Radioact. Waste Manage., 2(4), 158–165.
Vondruska, M., Sild, M., Koutny, M., and Bednarik, V. (2002). “Stabilization/solidification of waste incinerator salt and ash by asphalt emulsions.” Environ. Protect. Eng., 28(2).
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Copyright © 2004 American Society of Civil Engineers.
History
Received: Jan 3, 2002
Accepted: Mar 28, 2003
Published online: Dec 15, 2003
Published in print: Jan 2004
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