Comparison of costs for alternative mixed low-level waste treatment systems

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Total life cycle costs (TLCCs), including disposal costs, of thermal, nonthermal and enhanced nonthermal systems were evaluated to guide future research and development programs for the treatment of mixed low-level waste (MLLW) consisting of RCRA hazardous and low-level radioactive wastes. In these studies, nonthermal systems are defined as those systems that process waste at temperatures less than 350 C. Preconceptual designs and costs were developed for thirty systems with a capacity (2,927 lbs/hr) to treat the DOE MLLW stored inventor y(approximately 236 million pounds) in 20 years in a single, centralized facility. A limited comparison of the studies` results is ... continued below

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13 p.

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Schwinkendorf, W.E.; Harvego, L.; Cooley, C.R. & Biagi, C. December 31, 1996.

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Description

Total life cycle costs (TLCCs), including disposal costs, of thermal, nonthermal and enhanced nonthermal systems were evaluated to guide future research and development programs for the treatment of mixed low-level waste (MLLW) consisting of RCRA hazardous and low-level radioactive wastes. In these studies, nonthermal systems are defined as those systems that process waste at temperatures less than 350 C. Preconceptual designs and costs were developed for thirty systems with a capacity (2,927 lbs/hr) to treat the DOE MLLW stored inventor y(approximately 236 million pounds) in 20 years in a single, centralized facility. A limited comparison of the studies` results is presented in this paper. Sensitivity of treatment costs with respect to treatment capacity, number of treatment facilities, and system availability were also determined. The major cost element is operations and maintenance (O and M), which is 50 to 60% of the TLCC for both thermal and nonthermal systems. Energy costs constitute a small fraction (< 1%) of the TLCCs. Equipment cost is only 3 to 5% of the treatment cost. Evaluation of subsystem costs demonstrate that receiving and preparation is the highest cost subsystem at about 25 to 30% of the TLCC for both thermal and nonthermal systems. These studies found no cost incentives to use nonthermal or hybrid (combined nonthermal treatment with stabilization by vitrification) systems in place of thermal systems. However, there may be other incentives including fewer air emissions and less local objection to a treatment facility. Building multiple treatment facilities to treat the same total mass of waste as a single facility would increase the total treatment cost significantly, and improved system availability decreases unit treatment costs by 17% to 30%.

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13 p.

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INIS; OSTI as DE97052144

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  • Waste Management `97, Tucson, AZ (United States), 2-7 Mar 1997

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  • Other: DE97052144
  • Report No.: INEL--96/00268
  • Report No.: CONF-970335--55
  • Grant Number: AC07-94ID13223
  • DOI: 10.2172/495683 | External Link
  • Office of Scientific & Technical Information Report Number: 495683
  • Archival Resource Key: ark:/67531/metadc679746

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  • December 31, 1996

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  • July 25, 2015, 2:21 a.m.

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  • June 13, 2016, 6:51 p.m.

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Schwinkendorf, W.E.; Harvego, L.; Cooley, C.R. & Biagi, C. Comparison of costs for alternative mixed low-level waste treatment systems, report, December 31, 1996; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc679746/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.