Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management: Recent submissions
Now showing items 201-220 of 519
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Effect of High Cadmium Loading on Performance of Free Water Surface Constructed Wetlands
(American Society of Civil Engineers, 2007)This study was conducted to investigate the effect of high cadmium loading on the performance of free water surface constructed wetlands under different environmental conditions. Influents were prepared by mixing the ... -
Disparity of Cadmium Transport Behavior in Soils at Different Temperatures
(American Society of Civil Engineers, 2007)The influence of temperature on sorption and transport behavior of cadmium in three soils (sandy loam, loam, and clay loam) was studied with column and batch experiments. In the column experiments, nonequilibrium transport ... -
Microbial Characteristics of Water Distribution: Compiled Investigations in a German Drinking Water Distribution System
(American Society of Civil Engineers, 2007)In the last few years microbial activities within the drinking water distribution network have gained more and more attention. Hygienic problems, harassment with odor and bad taste, and even material deterioration are the ... -
Simplified Approach for Rapid Estimation of Trichloroethylene Adsorption onto Soils
(American Society of Civil Engineers, 2007)Trichloroethylene (TCE) adsorption onto soils is an important factor in the design and operation of reliable remediation systems for removing TCE. In this study, a simplified approach, consisting of headspace technique ... -
Sonochemical Treatment of Wastewater Effluent for the Removal of Pathogenic Protozoa Exemplified by <i>Cryptosporidium</i>
(American Society of Civil Engineers, 2007)To meet the increasing demand for potable water, reuse and reclamation projects must be developed and implemented to augment water sources. The reuse of treated wastewater could provide a significant portion of the demand ... -
Performance Monitoring of Remediation Technologies for Soil and Groundwater Contamination: Review
(American Society of Civil Engineers, 2007)Performance monitoring of applied remediation technologies is an important part of site remediation. It involves periodic measurement of site parameters to evaluate whether the remediation technologies perform as expected ... -
Natural Gradient Tracer Test for a Permeable Reactive Barrier in Denmark. I: Field Study of Tracer Movement
(American Society of Civil Engineers, 2006)A funnel-and-gate permeable reactive barrier (PRB) packed with zero-valent iron -
Quantitative Evaluation of the Effects of Hydrogeological Boundary and Initial Conditions on Slug Tests
(American Society of Civil Engineers, 2007)In analytical models for the slug test, it is assumed that the hydraulic head distribution within a formation is initially at equilibrium and that the hydrogeological boundaries can be defined deterministically. In practice, ... -
Establishment and Implementation of Source Water Implementation Plan for Water Treatment Plants in Taiwan
(American Society of Civil Engineers, 2007)In accordance with the source water implementation plan rule (SWIPR) in Taiwan, water treatment plants (WTPs) with source water parameters exceeding the source water quality standards are required to submit a source water ... -
Natural Gradient Tracer Test for a Permeable Reactive Barrier in Denmark. II: Spatial Moments Analysis and Dispersion of Conservative Tracer
(American Society of Civil Engineers, 2006)A natural gradient tracer experiment was conducted for a permeable reactive barrier (PRB) installed at the Vapokon site in Denmark to estimate the groundwater velocity inside the zero-valent iron -
Field Investigation at a Chlorinated Ethylene Contaminated Site
(American Society of Civil Engineers, 2006)Tetrachloroethylene (PCE) and trichloroethylene (TCE) are among the most ubiquitous chlorinated contaminants or compounds found in the subsurface environment. A recent site groundwater investigation focused on the underground ... -
Removal of Perfluorooctanoic Acid and Perfluorooctane Sulfonate from Wastewater by Ion Exchange
(American Society of Civil Engineers, 2007)Recent studies have demonstrated that fully fluorinated surfactant molecules have a tendency to accumulate in biological tissues. As a result, the Environmental Protection Agency has sought to reduce the usage of these ... -
Natural Attenuation Assessment Using Mineral Data
(American Society of Civil Engineers, 2006)Aqueous and mineral intrinsic biodegradation assessment (AMIBA) relies on the measurement of iron and sulfur mineral species, in addition to standard water analyses, to evaluate the intrinsic bioremediation component of ... -
Reduction of Low-MW Model Compounds by Ozonation and O3 ∕UV Processes
(American Society of Civil Engineers, 2007)In this investigation, the low-molecular-weight organic matters, such as resorcinol, phloroglucinol, and -
Health Risk Assessment for a Contaminated Site: A Case Study
(American Society of Civil Engineers, 2006)Health risk assessments are necessary for determining cancer risks and noncancer hazards associated with contaminated sites. A site exposure model was prepared for a contaminated site, where the major routes of exposure ... -
Aerobic Biofiltration Processes—Advances in Wastewater Treatment
(American Society of Civil Engineers, 2006)Wastewater biofiltration is a distinct process as compared to other biological treatments as the microorganisms are fixed to a support and wastewater flows through it to be treated. The biofiltration process technologies ... -
Mixing Autoshredder Residue and Waste Grease to Form Derived Fuel Rod
(American Society of Civil Engineers, 2007)The objective of this study was to investigate the feasibility and potential of mixing autoshredder residue (ASR) with waste grease to form autoshredder residue derived fuel (ASRDF). Appearance, density, length/diameter ... -
Effect of Chloride Ions on the Dechlorination of Hexachlorobenzene in the Presence of Zero-Valent Iron
(American Society of Civil Engineers, 2006)Hexachlorobenzene (HCB) is highly refractory and cannot be treated by typical biological treatment processes. Hence, it can be extracted out from effluent and sediment in local flora and fauna. This toxic chemical is ... -
Lime Treatment for Containment of Source Zone Energetics Contamination: Mesocosm Study
(American Society of Civil Engineers, 2007)This research examined basic and applied aspects of the application of an alkaline source to soil in order to reduce the source zone contamination on live fire ranges and contaminant transport into groundwater. Mesocosms ... -
Development and Implementation of Performance Evaluation System for a Water Treatment Plant: Case Study of Taipei Water Treatment Plant
(American Society of Civil Engineers, 2007)To implement performance assessment, it is necessary to develop adequate and representative performance indicators. Good performance indicators can specify the measurable evidence that is necessary to document the achievement ...