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Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. 1998 Annual Progress Report (open access)

Extraction and Recovery of Mercury and Lead From Aqueous Waste Streams Using Redox-Active Layered Metal Chalcogenides. 1998 Annual Progress Report

'Mercury and other highly-toxic heavy metals such as cadmium and lead are present in many aquatic environments, and the remediation of such environments or the avoidance of heavy-metal contamination in the first place is an area of active interest. In recent years tougher environmental regulations and the high initial cost of new, more effective, and more selective extractants has made the reuse of extractant materials and the minimization of secondary waste volume a focus of their scientific effort. The authors research has involved the investigation of redox-active layered metal chalcogenides as selective, effective, and redox-recyclable extractants for heavy metals from aqueous solution.'
Date: June 1, 1998
Creator: Dorhout, P.K. & Strauss, S.H.
Object Type: Report
System: The UNT Digital Library
Inner Communications Following the Near-Death Experience (open access)

Inner Communications Following the Near-Death Experience

Article describing three individuals who reported experiencing inner communications subsequent to their near-death experiences (NDEs), and suggesting that these inner messages may be a form of intuition, encouraging further research into this phenomena.
Date: Summer 1998
Creator: Liester, Mitchell B.
Object Type: Article
System: The UNT Digital Library
Long-Term Risk From Actinides in the Environment: Modes of Mobility. 1998 Annual Progress Report (open access)

Long-Term Risk From Actinides in the Environment: Modes of Mobility. 1998 Annual Progress Report

'The mobility of actinides in surface soils is a key issue of concern at several DOE facilities in arid and semiarid environments, including Rocky Flats, Hanford, Nevada Test Site, Idaho National Engineering Laboratory, and Los Alamos National Laboratory and the Waste Isolation Pilot Plant (WIPP). Key sources of uncertainty in assessing Pu mobility are the magnitudes of mobility resulting from three modes of transport: (1) wind erosion, (2) water erosion, and (3) vertical migration. Each of these three processes depend on numerous environmental factors and they compete with one another, particularly for actinides in very shallow soils ({approximately} 1 \265m). The overall goal of the study is to quantify the mobility of soil actinides from all three modes. The authors study is using field measurements, laboratory experiments, and ecological modeling to address these three processes at three DOE facilities where actinide kinetics are of concern: WIPP, Rocky Flats, and Hanford. Wind erosion is being measured with suite of monitoring equipment, water erosion is being studied with rainfall simulation experiments, vertical migration is being studied in controlled laboratory experiments, and the three processes are being integrated using ecological modeling. Estimates for clean up of soil actinides for the extensive tracts of …
Date: June 1, 1998
Creator: Breshears, D. D.; Whicker, J. J.; Ibrahim, S. A.; Whicker, F. W.; Hakonson, T. E. & Kirchner, T.
Object Type: Report
System: The UNT Digital Library
[News Clip: Kennedy funeral] captions transcript

[News Clip: Kennedy funeral]

Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: January 2, 1998, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library