Sulfur polymer cement encapsulation of RCRA toxic metals and metal oxides

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Description

A study was conducted to determine the suitability of Sulfur Polymer Cement (SPC) encapsulation technology for the stabilization of RCRA toxic metal and metal oxide wastes. In a series of bench-scale experiments, the effects of sodium sulfide additions to the waste mixture, residence time, and temperature profile were evaluated. In addition, an effort was made to ascertain the degree to which SPC affords chemical stabilization as opposed to physical encapsulation. Experimental results have demonstrated that at the 25 wt % loading level, SPC can effectively immobilize Cr, Cr{sub 2}O{sub 3}, Hg, Pb, and Se to levels below regulatory limits. SPC ... continued below

Physical Description

15 p.

Creation Information

Calhoun, C.L. Jr.; Nulf, L.E. & Gorin, A.H. June 1, 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 26 times . More information about this report can be viewed below.

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  • Oak Ridge Y-12 Plant
    Publisher Info: Oak Ridge Y-12 Plant, TN (United States)
    Place of Publication: Tennessee

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Description

A study was conducted to determine the suitability of Sulfur Polymer Cement (SPC) encapsulation technology for the stabilization of RCRA toxic metal and metal oxide wastes. In a series of bench-scale experiments, the effects of sodium sulfide additions to the waste mixture, residence time, and temperature profile were evaluated. In addition, an effort was made to ascertain the degree to which SPC affords chemical stabilization as opposed to physical encapsulation. Experimental results have demonstrated that at the 25 wt % loading level, SPC can effectively immobilize Cr, Cr{sub 2}O{sub 3}, Hg, Pb, and Se to levels below regulatory limits. SPC encapsulation also has been shown to significantly reduce the leachability of other toxic compounds including PbO, PbO{sub 2}, As{sub 2}O{sub 3}, BaO, and CdO. In addition, data has confirmed sulfide conversion of Hg, Pb, PbO, PbO{sub 2}, and BaO as the product of their reaction with SPC.

Physical Description

15 p.

Notes

INIS; OSTI as DE96003405

Source

  • Other Information: PBD: Jun 1995

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  • Other: DE96003405
  • Report No.: Y/DZ--1145
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/161467 | External Link
  • Office of Scientific & Technical Information Report Number: 161467
  • Archival Resource Key: ark:/67531/metadc621230

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • June 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 8, 2016, 5:53 p.m.

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Calhoun, C.L. Jr.; Nulf, L.E. & Gorin, A.H. Sulfur polymer cement encapsulation of RCRA toxic metals and metal oxides, report, June 1, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc621230/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.