Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management: Recent submissions
Now showing items 241-260 of 519
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Centrifuge Testing of LNAPL Migration and Soil Vapor Extraction for Soil Remediation
(American Society of Civil Engineers, 2006)Centrifuge modeling appears to be a useful experimental tool to study geoenvironmental problems, such as pollutant migration in subsurface systems. In this paper, the migration process of light nonaqueous phase liquids ... -
Reviewers
(American Society of Civil Engineers, 2005) -
Evaluation of Decolorization, Mineralization, and Toxicity Reduction of an Azo Dye C.I. Reactive Black 5 in a Countercurrent Bubble Column by Ozone
(American Society of Civil Engineers, 2006)A countercurrent and continuous-flow design bubble column reactor (BCR) was used to investigate variations in traditional parameters of water-containing Reactive Black 5 (RB5) under different gas/liquid flow rates. RB5 is ... -
Application of Fenton’s Reagent to Remediate Diesel Contaminated Soils
(American Society of Civil Engineers, 2006)This paper presents the results of an experimental investigation into usage of Fenton’s reagent (a mixture of ferrous salts and hydrogen peroxide) to remediate diesel-impacted soils. A number of process variables such as ... -
Simplified Design of Georadiological Barriers for Contaminated Sites
(American Society of Civil Engineers, 2005)Containment systems for surface soils that are contaminated with radioactive substances must provide emissions control for both radionuclide migration and ionizing radiation. Herein, a design methodology for georadiological ... -
Design and Performance of Four Evapotranspiration Caps
(American Society of Civil Engineers, 2005)The protective cap/biobarrier experiment was constructed to compare the performance of three alternative evapotranspiration (ET) caps with that of a U.S. Resource Conservation and Recovery Act recommended cap. One alternative ... -
Drainage Layer Fouling as a Consideration in Capillary Barrier Design
(American Society of Civil Engineers, 2005)The combined effects of various levels of hydraulic flow regimes and applied loads on the stability of the interface between the coarse and fine layers of a capillary barrier cover system were investigated by performing ... -
Treatment of Contaminated Soils and Groundwater Using ISCO
(American Society of Civil Engineers, 2006)In situ chemical oxidation (ISCO) is a rapidly growing field for the remediation of contaminated soils and groundwater. This paper provides an overview of the four oxidation systems that are in common use for ISCO: Catalyzed -
Analyses of Seismic Damage to Interfaces in Waste Containment Systems: A Review
(American Society of Civil Engineers, 2005)Interfaces are generally the weak links in most structural systems because they are locations of stress concentration and physicochemical/biological attack from both external and internal causes. For waste containment ... -
Design Method for Municipal Solid Waste Landfill Liner System Subjected to Sinkhole Cavity under Landfill Site
(American Society of Civil Engineers, 2005)Current design of municipal solid waste landfill liner systems utilizes granular and normally consolidated soil with geosynthetics materials to provide the required environmental and public health protection. Liner systems ... -
Long-Term Hydraulic Performance Evaluation for a Multilayer Closure Cap
(American Society of Civil Engineers, 2005)As part of an evaluation of closure alternatives for a radioactively contaminated facility, the Hydrologic Evaluation of Landfill Performance (HELP) Model was used iteratively with published leakage equations to predict ... -
Influence of Biofilm on Barrier Material Performance
(American Society of Civil Engineers, 2005)Experimental work was conducted to investigate the influence of biofilm on the hydraulic conductivity and desiccation characteristics of two barrier soils. Bacteria were used to prepare solutions of varying concentration ... -
Cadmium Removal from Wastewater in Constructed Wetlands
(American Society of Civil Engineers, 2005)This study was conducted to investigate the cadmium removal in the free water surface and subsurface flow constructed wetland systems under different environmental conditions. Removal efficiencies of the chemical oxygen ... -
Dynamic Modeling of an Evapotranspiration Cover
(American Society of Civil Engineers, 2005)The U.S. Department of Energy is scheduled to design and install hundreds of landfill caps/barriers over the next several decades and these caps will have a design life expectancy of up to 1,000 years. Other landfill caps ... -
Improvement of Approaches to Waste Containment System Development, Management, and Evaluation
(American Society of Civil Engineers, 2005) -
Design Principles and Concepts for Enhancing Long-Term Cap Performance and Confidence
(American Society of Civil Engineers, 2005)The siting of new waste containment systems is becoming increasing difficult as the public and stakeholders want more confidence that contaminant barrier systems will perform effectively for very long durations and owners ... -
Evaluation of Source Water Quality Standards for Total Coliforms, TOC, and COD in Taiwan
(American Society of Civil Engineers, 2005)The objective of this research is to review the current status of source water as compared with the Taiwanese source water quality standards promulgated in 1997. The total coliforms, total organic carbon (TOC) and chemical ... -
Health Risk Assessment of A Heavy Metal Contaminated Site in Taiwan
(American Society of Civil Engineers, 2005)Several farms on the north seashore of Taiwan were contaminated with cadmium and lead since the early 1980s. At the contaminated site, the average soil concentrations of cadmium and lead, analyzed in 1982 and 1996, ranged from -
Phosphorus Co-Precipitation in the Biological Treatment of Slaughterhouse Wastewater in a Sequencing Batch Reactor
(American Society of Civil Engineers, 2005)The effect of phosphorus co-precipitation with ferric chloride -
Management of Atrazine Bearing Wastewater Using an Upflow Anaerobic Sludge Blanket Reactor–Adsorption System
(American Society of Civil Engineers, 2005)In the present investigation, an attempt was made to develop a treatment system for the management of atrazine bearing wastewater. The system consists of an upflow anaerobic sludge blanket (UASB) reactor followed by an ...