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Ecological evaluation of proposed discharge of dredged material from Oakland Harbor into ocean waters (Phase 3 A of -42-foot project). Volume 1, Analyses and discussion

Description: The Battelle/Marine Sciences Laboratory (MSL) conducted a study to detemine whether dredged sediments from Oakland Inner and Outer Harbors were, suitable for ocean disposal. Nineteen test treatments, six reference treatments, and control treatments were tested for physical/chemical parameters, water column effects, dredged sediment-toxicity, and bioaccumulation potential. Physical/chemical parameters were analyzed at each site and each composite sediment to a depth of -44 ft MLLW. These paramet… more
Date: September 1, 1992
Creator: Ward, J. A.; Word, J. Q.; Pinza, M. R.; Mayhew, H. L.; Barrows, E. S. & Lefkovitz, L. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of innovative arsenic treatment technologies :the arsenic water technology partnership vendors forums summary report.

Description: The lowering of the drinking water standard (MCL) for arsenic from 50 {micro}g/L to 10 {micro}g/L in January 2006 could lead to significant increases in the cost of water for many rural systems throughout the United States. The Arsenic Water Technology Partnership (AWTP), a collaborative effort of Sandia National Laboratories, the Awwa Research Foundation (AwwaRF) and WERC: A Consortium for Environmental Education and Technology Development, was formed to address this problem by developing and … more
Date: September 1, 2006
Creator: Everett, Randy L.; Siegel, Malcolm Dean; McConnell, Paul E. & Kirby, Carolyn (Comforce Technical Services, Inc.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Specifically Designed Constructed Wetlands: A Novel Treatment Approach for Scrubber Wastewater

Description: A pilot-scale wetland treatment system was specifically designed and constructed at Clemson University to evaluate removal of mercury, selenium, and other constituents from flue gas desulfurization (FGD) wastewater. Specific objectives of this research were: (1) to measure performance of a pilot-scale constructed wetland treatment system in terms of decreases in targeted constituents (Hg, Se and As) in the FGD wastewater from inflow to outflow; (2) to determine how the observed performance is a… more
Date: September 1, 2005
Creator: Jr, John H. Rodgers; Castle, James W.; Eggert, Chris Arrington: Derek & Iannacone, Meg
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

1993 to 1995 environmental surveillance data collected at or near Area G

Description: This report summarizes Environmental Surveillance data collected by the Water Quality and Hydrology Group during 1993, 1994, and 1995 at or in the vicinity of TA-54, Area-G of the Los Alamos National Laboratory, New Mexico. The summary includes radiochemical, metals, general inorganic, and organic analytical results. The tables list measured concentrations (or detection limits for results below detection limits), analytical uncertainties for radiochemical data, sample locations, and sample date… more
Date: September 1, 1996
Creator: Mullen, K.; Collins, S. & Rogers, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

1997 Performance Testing of Multi-Metal Continuous Emissions Monitors

Description: Five prototype and two commercially available multi-metals continuous emissions monitors (CEMs) were tested in September 1997 at the Rotary Kiln Incinerator Simulator facility at the EPA National Risk Management Research Laboratory, Research Triangle Park, North Carolina. The seven CEMs were tested side by side in a long section of duct following the secondary combustion chamber of the RKIS. Two different concentrations of six toxic metals were introduced into the incinerator-approximately 15 a… more
Date: September 1, 1998
Creator: Sky +, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

BIOCHEMICAL PROCESSES FOR GEOTHERMAL BRINE TREATMENT

Description: As part of the DOE Geothermal Energy Program, BNL's Advanced Biochemical Processes for Geothermal Brines (ABPGB) project is aimed at the development of cost-efficient and environmentally acceptable technologies for the disposal of geothermal wastes. Extensive chemical studies of high and low salinity brines and precipitates have indicated that in addition to trace quantities of regulated substances, e.g., toxic metals such as arsenic and mercury, there are significant concentrations of valuable… more
Date: September 20, 1998
Creator: Premusic, E. T.; Lin, M. S.; Bohenek, M.; Joshi-Top, G.; Zhou, W.; Shelenkova, L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

In situ groundwater MOP-UP. Topical report, April 12, 1996--May 11, 1998

Description: Under this FETC-funded program, Biopraxis proposed to demonstrate the feasibility of using its new MOP-UP technology for in situ treatment of metal-contaminated groundwater. Instead of optimizing the technology to demonstrate the feasibility of its use at a single site, the final series of tests were designed to showcase the breadth and flexibility of the MOP-UP technology by demonstrating its capabilities in as many different groundwater environments as possible. Sites that were contaminated w… more
Date: September 1, 1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Toxicological benchmarks for potential contaminants of concern for effects on soil and litter invertebrates and heterotrophic process

Description: An important step in ecological risk assessments is screening the chemicals occur-ring on a site for contaminants of potential concern. Screening may be accomplished by comparing reported ambient concentrations to a set of toxicological benchmarks. Multiple endpoints for assessing risks posed by soil-borne contaminants to organisms directly impacted by them have been established. This report presents benchmarks for soil invertebrates and microbial processes and addresses only chemicals found at… more
Date: September 1, 1995
Creator: Will, M. E. & Suter, G. W. II
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stabilization of vitrified wastes: Task 4. Topical report, October 1994--September 1995

Description: The goal of this task was to work with private industry to refine existing vitrification processes to produce a more stable vitrified product. The initial objectives were to (1) demonstrate a waste vitrification procedure for enhanced stabilization of waste materials and (2) develop a testing protocol to understand the long-term leaching behavior of the stabilized waste form. The testing protocol was expected to be based on a leaching procedure called the synthetic groundwater leaching procedur… more
Date: September 1, 1995
Creator: Nowok, J. W.; Pflughoeft-Hassett, D. F.; Hassett, D. J. & Hurley, J. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of energy-dispersive X-ray fluorescence as a mobile analysis method for hazardous metals in transuranic waste

Description: Energy-dispersive X-ray fluorescence (EDXRF) is a widely applied technique for both laboratory and field-based characterization of metals in complex matrices. Here an EDXRF method is described for analysis of 13 hazardous (RCRA) metals in Portland cement, a typical matrix for transuranic (TRU) waste from US Department of Energy (DOE) sites. Samples are analyzed as homogeneous powders prepared by simple drying, mixing, and milling. Analyses are performed using a commercial EDXRF spectrometer equ… more
Date: September 1, 1998
Creator: Goldstein, S.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Toxicity assessment of Hanford Site wastes by bacterial bioluminescence. [Photobacter phosphoreum:a3]

Description: This paper examines the toxicity of the nonradioactive component of low-level wastes stored in tanks on the Hanford reservation. The use of a faster, cheaper bioassay to replace the 96 hour fish acute toxicity test is examined. The new bioassay is based on loss of bioluminescence of {und Photobacter phosphoreum} (commonly called Microtox) following exposure to toxic materials. This bioassay is calibrated and compares well to the standard fish acute toxicity test for characterization of Hanford … more
Date: September 1, 1991
Creator: Rebagay, T. V.; Dodd, D. A. & Voogd, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Sorbents for High Temperature Removal of Arsenic from Coal-Derived Synthesis Gas

Description: Gasification technologies convert coal and other heavy feedstocks into synthesis gas feed streams that can be used in the production of a wide variety of chemicals, ranging from hydrogen through methanol, ammonia, acetic anhydride, dimethyl ether (DME), methyl tertiary butyl ether (MTBE), high molecular weight liquid hydrocarbons and waxes. Syngas can also be burned directly as a fuel in advanced power cycles to generate electricity with very high efficiency. However, the coal-derived synthesis… more
Date: September 20, 2002
Creator: Alptekin, Gokhan O.; Copeland, Robert; Dubovik, Margarita & Gershanovich, Yevgenia
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Air Tests]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: September 7, 1990, 6:00 p.m.
Duration: 2 minutes 06 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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