Resource Type

Reuse of Treated Internal or External Wastewaters in the Cooling Systems of Coal-Based Thermoelectric Power Plants (open access)

Reuse of Treated Internal or External Wastewaters in the Cooling Systems of Coal-Based Thermoelectric Power Plants

This study evaluated the feasibility of using three impaired waters - secondary treated municipal wastewater, passively treated abandoned mine drainage (AMD), and effluent from ash sedimentation ponds at power plants - for use as makeup water in recirculating cooling water systems at thermoelectric power plants. The evaluation included assessment of water availability based on proximity and relevant regulations as well as feasibility of managing cooling water quality with traditional chemical management schemes. Options for chemical treatment to prevent corrosion, scaling, and biofouling were identified through review of current practices, and were tested at bench and pilot-scale. Secondary treated wastewater is the most widely available impaired water that can serve as a reliable source of cooling water makeup. There are no federal regulations specifically related to impaired water reuse but a number of states have introduced regulations with primary focus on water aerosol 'drift' emitted from cooling towers, which has the potential to contain elevated concentrations of chemicals and microorganisms and may pose health risk to the public. It was determined that corrosion, scaling, and biofouling can be controlled adequately in cooling systems using secondary treated municipal wastewater at 4-6 cycles of concentration. The high concentration of dissolved solids in treated …
Date: June 30, 2009
Creator: Vidic, Radisav; Dzombak, David; Hsieh, Ming-Kai; Li, Heng; Chien, Shih-Hsiang; Feng, Yinghua et al.
System: The UNT Digital Library
Second report on the Oak Ridge Y-12 Plant Biological Monitoring and Abatement Program for East Fork Poplar Creek (open access)

Second report on the Oak Ridge Y-12 Plant Biological Monitoring and Abatement Program for East Fork Poplar Creek

As stipulated in the National Pollutant Discharge Elimination System (NDPES) permit issued to the Oak Ridge Y-12 Plant on May 24, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for the receiving stream, East Fork Poplar Creek (EFPC). The objectives of BMAP are (1) to demonstrate that the current effluent limitations established for the Y-12 Plant protect the classified uses of EFPC (e.g., the growth and propagation of fish and aquatic life), as designated by the Tennessee Department of Environment and Conservation (TDEC) and (2) to document the ecological effects resulting from implementation of a Water Pollution Control Program that includes construction of several large wastewater treatment facilities. BMAP consists of four major tasks: (1) ambient toxicity testing; (2) bioaccumulation studies; (3) biological indicator studies; and (4) ecological surveys of stream communities, including periphyton (attached algae), benthic (bottom-dwelling) macroinvertebrates, and fish. This document, the second in a series of reports on the results of the Y-12 Plant BMAP, describes studies that were conducted between July 1986 and July 1988, although additional data collected outside this time period are included, as appropriate.
Date: June 1, 1993
Creator: Hinzman, R. L.; Adams, S. M. & Black, M. C.
System: The UNT Digital Library
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells (open access)

Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells

None
Date: June 30, 2005
Creator: Morrison, Joel L.
System: The UNT Digital Library
Phase 1 RCRA Facility Investigation and Corrective Measures Study Work Plan for Single Shell Tank Waste Management Areas (open access)

Phase 1 RCRA Facility Investigation and Corrective Measures Study Work Plan for Single Shell Tank Waste Management Areas

This document is the master work plan for the Resource Conservation and Recovery Act of 1976 (RCRA) for single-shell tank (SST) farms at the Hanford Site. Evidence indicates that releases at four of the seven SST waste management areas have impacted.
Date: June 1, 2000
Creator: ROGERS, P.M.
System: The UNT Digital Library
Idaho National Engineering Laboratory radioecology and ecology programs. 1983 progress report (open access)

Idaho National Engineering Laboratory radioecology and ecology programs. 1983 progress report

Progress is reported in research on: the baseline ecology of the Idaho National Engineering Laboratory (INEL), the effects of disturbance on animal and plant communities, and the behavior of radionuclides in the environment surrounding radioactive waste sites. Separate abstracts have been prepared for individual reports. (ACR)
Date: June 1, 1983
Creator: Markham, O. D.
System: The UNT Digital Library
Groundwater Flow Model of Corrective Action Units 101 and 102: Central and Western Pahute Mesa, Nevada Test Site, Nye County, Nevada, Revision 0 (open access)

Groundwater Flow Model of Corrective Action Units 101 and 102: Central and Western Pahute Mesa, Nevada Test Site, Nye County, Nevada, Revision 0

The Pahute Mesa groundwater flow model supports the FFACO UGTA corrective action strategy objective of providing an estimate of the vertical and horizontal extent of contaminant migration for each CAU in order to predict contaminant boundaries. A contaminant boundary is the model-predicted perimeter that defines the extent of radionuclide-contaminated groundwater from underground nuclear testing above background conditions exceeding Safe Drinking Water Act (SDWA) standards. The contaminant boundary will be composed of both a perimeter boundary and a lower hydrostratigraphic unit (HSU) boundary. Additional results showing contaminant concentrations and the location of the contaminant boundary at selected times will also be presented. These times may include the verification period, the end of the five-year proof-of-concept period, as well as other times that are of specific interest. The FFACO (1996) requires that the contaminant transport model predict the contaminant boundary at 1,000 years and “at a 95% level of confidence.” The Pahute Mesa Phase I flow model described in this report provides, through the flow fields derived from alternative hydrostratigraphic framework models (HFMs) and recharge models, one part of the data required to compute the contaminant boundary. Other components include the simplified source term model, which incorporates uncertainty and variability in the …
Date: June 1, 2006
Creator: Ruskauff, Greg
System: The UNT Digital Library
Colloid-Facilitated Transport of Radionuclides Through The Vadose Zone (open access)

Colloid-Facilitated Transport of Radionuclides Through The Vadose Zone

The main purpose of this project was to advance the basic scientific understanding of colloid and colloid-facilitated Cs transport of radionuclides in the vadose zone. We focused our research on the hydrological and geochemical conditions beneath the leadking waste tanks at the USDOE Hanford reservation. Specific objectives were (1) to determine the lability and thermodynamic stability of colloidal materials, which form after reacting Hanford sediments with simulated Hanford Tank Waste, (2) to characterize the interactions between colloidal particles and contaminants, i.e., Cs and Eu, (3) to determine the potential of Hanford sediments for in situe mobilization of colloids, (4) to evaluate colloid-facilitated radionuclide transport through sediments under unsaturated flow, (5) to implement colloid-facilitated contaminant transport mechanisms into a transport model, and (6) to improve conceptual characterization of colloid-contaminant-soil interactions and colloid-facilitated transport for clean-up procedures and long-term risk assessment.
Date: June 22, 2007
Creator: Flury, Markus; Harsh, James B.; Lichtner, John F. McCarthy' Peter C. & Zachara, John M.
System: The UNT Digital Library
Energy Related Use Conflicts for the Columbia River Estuary, Volume 1: Text (open access)

Energy Related Use Conflicts for the Columbia River Estuary, Volume 1: Text

Report that "provides a narrative description of projected energy development and describes the biological characteristics of fish and wildlife and their habitats, and gives a critique of potential environmental impacts, and measures of protection and mitigation" (p. iii)
Date: June 1983
Creator: Garcia, John; Loehr, Lincoln; Richter, Klaus; Ahlborn, Gary; Westerlund, Frank & Pratt, Jeremy
System: The UNT Digital Library
Proceedings of the International Symposium for Packaging and Transportation of Radioactive Materials: 1965 (open access)

Proceedings of the International Symposium for Packaging and Transportation of Radioactive Materials: 1965

Forword: The International Symposium for Packaging and Transportation of radioactive materials held at Albuquerque, New Mexico, January 12 to 15, 1965, was a joint effort on the part of the Sandia Corporation, the Albuquerque Operations Office, and the Headquarters, U.S. Atomic Energy Commission.
Date: June 1965
Creator: unknown
System: The UNT Digital Library
Texas Construction Report: June 1988 (open access)

Texas Construction Report: June 1988

Monthly report documenting contracts for road construction and maintentance in Texas, organized by county and district. It includes information about each project including contractor, dates, costs, and other relevant data.
Date: June 1, 1988
Creator: Texas. State Department of Highways and Public Transportation. Construction Division.
System: The Portal to Texas History
Remedial investigation/feasibility study of the Clinch River/Poplar Creek operable unit. Volume 1: Main text (open access)

Remedial investigation/feasibility study of the Clinch River/Poplar Creek operable unit. Volume 1: Main text

This report presents the findings of an investigation into contamination of the Clinch River and Poplar Creek near the US Department of Energy`s (DOE`s) Oak Ridge Reservation (ORR) in eastern Tennessee. For more than 50 years, various hazardous and radioactive substances have been released to the environment as a result of operations and waste management activities at the ORR. In 1989, the ORR was placed on the National Priorities List (NPL), established and maintained under the federal Comprehensive environmental Response, Compensation, and Liability Act of 1980 (CERCLA). Under CERCLA, NPL sites must be investigated to determine the nature and extent of contamination at the site, assess the risk to human health and the environment posed by the site, and, if necessary, identify feasible remedial alternatives that could be used to clean the site and reduce risk. To facilitate the overall environmental restoration effort at the ORR, CERCLA activities are being implemented individually as distinct operable units (OUs). This document is the combined Remedial Investigation and Feasibility Study Report for the Clinch River/Poplar Creek OU.
Date: June 1, 1996
Creator: unknown
System: The UNT Digital Library
Tentative Provisions for the Development of Seismic Regulations for Buildings: A Cooperative Effort with the Design Professions, Building Code Interests, and the Research Community (open access)

Tentative Provisions for the Development of Seismic Regulations for Buildings: A Cooperative Effort with the Design Professions, Building Code Interests, and the Research Community

Report issued by the U.S. National Bureau of Standards discussing building codes and standards in earthquake-prone areas. As stated in the introduction, "the basic purpose of this project is to present, in one comprehensive document, current state-of-knowledge in the fields of engineering seismology and engineering practice as it pertains to seismic design and construction of buildings" (p. 1). This report includes tables, and illustrations.
Date: June 1978
Creator: Applied Technology Council
System: The UNT Digital Library
Title list of documents made publicly available, April 1--30 1997, Vol. 19, No. 4 (open access)

Title list of documents made publicly available, April 1--30 1997, Vol. 19, No. 4

This report describes the information received and published by the U.S. Nuclear Regulatory Commission (NRC). This information includes: (1) material associated with civilian nuclear power plants and other uses of radioactive materials and (2) material received and published by NRC pertinent to its role as a regulatory agency. In this report, 7 items of the first type are included, and 25 regulatory type items are listed. The report is indexed by a Personal Author Index, a Corporate Source Index, and a Report Number Index.
Date: June 1, 1997
Creator: Morris, E.B.
System: The UNT Digital Library
U.S. Pacific Marine Mammal Stock Assessments: 2010 (open access)

U.S. Pacific Marine Mammal Stock Assessments: 2010

From preface: This is a working document and individual stock assessment reports will be updated as new information on marine mammal stocks and fisheries become available...These Stock Assessment Reports summarize information from a wide range of original data sources and an extensive bibliography of all sources is given in each report.
Date: June 2011
Creator: Caretta, James V.; Forney, Karin A.; Oleson, Erin; Martien, Karen; Muto, Marcia M.; Lowry, Mark S. et al.
System: The UNT Digital Library
Electric power supply and demand for the contiguous United States, 1980-1989 (open access)

Electric power supply and demand for the contiguous United States, 1980-1989

A limited review is presented of the outlook for the electric power supply and demand during the period 1980 to 1989. Only the adequacy and reliability aspects of bulk electric power supply in the contiguous US are considered. The economic, financial and environmental aspects of electric power system planning and the distribution of electricity (below the transmission level) are topics of prime importance, but they are outside the scope of this report.
Date: June 1, 1980
Creator: unknown
System: The UNT Digital Library
An Assessment of Oil Shale Technologies (open access)

An Assessment of Oil Shale Technologies

A study by the Office of Technology Assessment that examines the oil shale resources of the Western United States that could contribute to the liquid fuel supply of the United States.
Date: June 1980
Creator: United States. Congress. Office of Technology Assessment.
System: The UNT Digital Library
Index to U.S. Geological Survey Computer Files Containing Daily Values for Water Parameters to September 30, 1971 -- Central Region (open access)

Index to U.S. Geological Survey Computer Files Containing Daily Values for Water Parameters to September 30, 1971 -- Central Region

Abstract: This report contains lists of stations at which the U.S. Geological Survey collects water data either on a continuous basis or at least on a daily basis. The files contain daily values for streamflow, reservoir levels or contents, water temperatures, specific conductance, sediment discharge plus data for several other quality parameters that are measured by means of monitoring equipment or result from analyses of samples collected on a daily basis. The stations are listed according to station number within each State. The report lists the availanle retrieval options, the machine -readable output options, user charges and how to obtain data.
Date: June 1973
Creator: Showen, Charles R. & Stuthmann, Neil G.
System: The UNT Digital Library
Radionuclides, Metals, and Hydrocarbons in Oil and Gas Operational Discharges and Environmental Samples Associated with Offshore Production Facilities on the Texas/Louisiana Continental Shelf with an Environmental Assessment of Metals and Hydrocarbons. (open access)

Radionuclides, Metals, and Hydrocarbons in Oil and Gas Operational Discharges and Environmental Samples Associated with Offshore Production Facilities on the Texas/Louisiana Continental Shelf with an Environmental Assessment of Metals and Hydrocarbons.

This report presents concentrations of radionuclides, metals, and hydrocarbons in samples of produced water and produced sand from oil and gas production platforms located offshore Texas and Louisiana. concentrations in produced water discharge plume / receiving water, ambient seawater, sediment, interstitial water, and marine animal tissue samples collected in the vicinity of discharging platforms and reference sites distant from discharges are also reported and discussed. An environmental risk assessment is made on the basis of the concentration of metals and hydrocarbons determined in the samples.
Date: June 1, 1997
Creator: unknown
System: The UNT Digital Library
Title list of documents made publicly available: April 1--30, 1996. Volume 18, Number 4 (open access)

Title list of documents made publicly available: April 1--30, 1996. Volume 18, Number 4

This publication describes the information received and published by the US Nuclear Regulatory Commission (NRC). This information includes (1) docketed material associated with civilian nuclear power plants and other uses of radioactive materials and (2) non-docketed material received and published by NRC pertinent to its role as a regulatory agency. As used here, docketed does not refer to Court dockets; it refers to the system by which NRC maintains its regulatory records. This series of documents is indexed by a Personal Author Index, a Corporate Source Index, and a Report Number Index.
Date: June 1, 1996
Creator: unknown
System: The UNT Digital Library
Remedial investigation/feasibility study of the Clinch River/Poplar Creek operable unit. Volume 3: Appendixes E and F -- Risk assessment information (open access)

Remedial investigation/feasibility study of the Clinch River/Poplar Creek operable unit. Volume 3: Appendixes E and F -- Risk assessment information

This report presents the findings of an investigation into contamination of the Clinch River and Poplar Creek near the US Department of Energy`s (DOE`s) Oak Ridge Reservation (ORR) in eastern Tennessee. For more than 50 years, various hazardous and radioactive substances have been released to the environment as a result of operations and waste management activities at the ORR. In 1989, the ORR was placed on the National Priorities List (NPL), established and maintained under the federal Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA). Under CERCLA, NPL sites must be investigated to determine the nature and extent of contamination at the site, assess the risk to human health and the environment posed by the site, and, if necessary, identify feasible remedial alternatives that could be used to clean the site and reduce risk. To facilitate the overall environmental restoration effort at the ORR, CERCLA activities are being implemented individually as distinct operable units (OUs). This document is the combined Remedial Investigation and Feasibility Study Report for the Clinch River/Poplar Creek OU.
Date: June 1, 1996
Creator: unknown
System: The UNT Digital Library