Abstract
The Republic of Kazakhstan generates significant quantities of excess elemental sulfur from the production and refining of petroleum reserves. In addition, the country also produces hazardous and radioactive wastes which require treatment/stabilization. In an effort to find secondary uses for the elemental sulfur, simultaneously produce a material which could be used to encapsulate, and reduce the dispersion of harmful contaminants into the environment, BNL evaluated the use of the sulfur polymer cement (SPC) produced from by-product sulfur in Kazakhstan. This thermoplastic binder material forms a durable waste form with low leaching properties and is compatible with a wide range of waste types. Several hundred kilograms of Kazakhstan sulfur were shipped to the U.S. and converted to SPC (by reaction with 5 weight percent (wt%) organic modifiers for use in this study. A phosphogypsum sand waste generated in Kazakhstan during the purification of phosphate fertilizer was selected for treatment. Waste loadings of 40 wt% were easily achieved. Waste form performance testing included compressive strength, water immersion, and Accelerated Leach Testing.
Keywords
- Compressive Strength
- Water Immersion
- Toxicity Characteristic Leach Proce
- Compressive Strength Testing
- Waste Form
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© 2002 Kluwer Academic Publishers
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Kalb, P.D., Milian, L.W., Yim, S.P., Dyer, R.S., Michaud, W.R. (2002). Treatability Study on the Use of by-product Sulfur in Kazakhstan for the Stabilization of Hazardous and Radioactive Wastes. In: Tedder, D.W., Pohland, F.G. (eds) Emerging Technologies in Hazardous Waste Management 8. Springer, Boston, MA. https://doi.org/10.1007/0-306-46921-9_16
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DOI: https://doi.org/10.1007/0-306-46921-9_16
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