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In situ determination of desorbable methane content by use of three different decay functions

Description: The desorptive properties of methane in selected western coal seams were studied through actual field measurements using a manual bubble desorbometer and later verified through laboratory modeling. Data were reduced using a power decay function, a quadratic function, and an exponential function. Methane desorption characteristics from individual coal seams were shown theoretically to be a good estimator of a seams total methane content to within {plus minus}20%. A laboratory was set up and equi… more
Date: October 1, 1990
Creator: Plaizier, R.R. (Westech Engineering, Inc., Salem, OR (USA)) & Hucka, V.J. (Utah Univ., Salt Lake City, UT (USA). Dept. of Mining Engineering)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An evaluation of the geothermal potential of the Tecuamburro Volcano area of Guatemala

Description: Radiometric ages indicate that the Tecuamburro Volcano and three adjacent lava domes grew during the last 38,300 years, and that a 360-m-wide phreatic crater, Laguna Ixpaco, was formed near the base of these domes about 2900 years ago. Laguna Ixpaco is located within the Chupadero crater, from which pyroxene pumice deposits were erupted 38,300 years ago. Thus, the likelihood is great for a partly molten or solid-but-still-hot near-surface intrusion beneath the area. Fumaroles and hot springs is… more
Date: September 1, 1990
Creator: Heiken, G. & Duffield, W. (eds.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Waste drum gas generation sampling program at Rocky Flats during FY 1989

Description: Rocky Flats Plant transuranic waste drums were sampled for gas composition. Glass, metal, graphite, and solidified inorganic sludge transuranic waste forms were sampled. A vacuum system was used to sample each layer of containment inside a waste drum, including individual waste bags. G values were calculated for the waste drums. G(H{sub 2}) was below 0.6 and G(Total) was below 1.3 for all waste forms discussed in this report. 5 refs., 3 figs., 3 tabs.
Date: October 1, 1990
Creator: Roggenthen, D. K. & Nieweg, R. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The physical properties and chemical composition of the gas within the free volume of canistered waste forms

Description: The DWPF must meet Waste Acceptance Preliminary Specifications (WAPS) for acceptance of the DWPF canistered waste forms. A number of these specifications deal with the exclusion of non-wasteglass (or foreign) materials within the canistered waste forms. Those material which are specifically excluded include the following: Free Liquids, Free Gases, other than cover or radiogenic gases, Explosives, Pyrophorics and Combustibles, and Organics. This report documents the results obtained by carrying … more
Date: November 1, 1990
Creator: Harbour, J. R.; Miller, T. J. & Whitaker, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

No-migration variance petition. Appendix B, Attachments E--Q: Volume 4, Revision 1

Description: Volume IV contains the following attachments: TRU mixed waste characterization database; hazardous constituents of Rocky flats transuranic waste; summary of waste components in TRU waste sampling program at INEL; total volatile organic compounds (VOC) analyses at Rocky Flats Plant; total metals analyses from Rocky Flats Plant; results of toxicity characteristic leaching procedure (TCLP) analyses; results of extraction procedure (EP) toxicity data analyses; summary of headspace gas analysis in R… more
Date: March 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste Isolation Pilot Plant No-Migration Variance Petition. Revision 1, Volume 1

Description: The purpose of the WIPP No-Migration Variance Petition is to demonstrate, according to the requirements of RCRA {section}3004(d) and 40 CFR {section}268.6, that to a reasonable degree of certainty, there will be no migration of hazardous constituents from the facility for as long as the wastes remain hazardous. The DOE submitted the petition to the EPA in March 1989. Upon completion of its initial review, the EPA provided to DOE a Notice of Deficiencies (NOD). DOE responded to the EPA`s NOD and… more
Date: March 1, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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