Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management: Recent submissions
Now showing items 221-240 of 519
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Distribution of Methylmercury in a Mercury-Contaminated Ecosystem
(American Society of Civil Engineers, 2006)Since the late 1950s, a wastewater stream contaminated with mercury has discharged into a seawater impoundment next to a sodium pentachlorophenate -
Vermiculite Filtration for Removal of Oil from Water
(American Society of Civil Engineers, 2006)In the present study expanded vermiculite in the granular form was used in filtration studies (column studies) in treating four representative oil-in-water emulsions. The four oil-in-water emulsions were standard mineral ... -
Anaerobic Biodegradation of RDX and TCE: Single- and Dual-Contaminant Batch Tests
(American Society of Civil Engineers, 2006)Several sites in the United States have groundwater contaminated with mixtures of high explosives and chlorinated solvents. This research examined the ability of two microbial cultures (anaerobic sludge and a facultative ... -
Influence of Pore-Water Velocity on Transport Behavior of Cadmium: Equilibrium versus Nonequilibrium
(American Society of Civil Engineers, 2006)The effect of pore-water velocity -
Iron Oxide Coated Sand for Arsenic Removal: Investigation of Coating Parameters Using Factorial Design Approach
(American Society of Civil Engineers, 2006)Iron oxide-coated sand filtration is reported as one of the most viable technological options for arsenic removal from drinking water by the United States Environmental Protection Agency. For substantial utilization of the ... -
Microanalytical Characterizations of Eroded and Slaked Mudstone Proposed as Landfill Liner Material
(American Society of Civil Engineers, 2006)An understanding of microanalytical characterizations would be useful to explain the hydraulic behavior of water across the slaked mudstone liner. It is further expected that the mudstone material could be designed for ... -
Laboratory-Scale Evaluation of Cr(VI) Removal from Clay by Electrokinetics Incorporated with Fe(O) Barrier
(American Society of Civil Engineers, 2006)The effectiveness of incorporating Fe(O) barrier into electrokinetic (EK) process to remediate Cr(VI) contaminated clay -
Study of Total Maximum Daily Load and Nonpoint Source Pollution Control Strategies for Reservoir Watershed
(American Society of Civil Engineers, 2006)In Taiwan, nonpoint source (NPS) pollution is one of the major causes of the impairment of surface waters. Thus, control of NPS has been considered as one of the major issues in developing watershed management strategies. ... -
Numerical Simulation of Depleted Uranium Transport in a Desert Environment Using a Distributed Parameter Watershed Model
(American Society of Civil Engineers, 2006)This paper focuses on the distribution and movement of solid depleted uranium (DU) in a desert environment. Given the sparse nature of rainfall runoff and the flashiness of the rainfall runoff in this environment, limited ... -
Detection of Illegal Dump Deposit with GPR: Case Study
(American Society of Civil Engineers, 2006)An illegal dumping site located in Ping-Tung County, Taiwan was selected as the case study site. For the site remediation and decision-making purposes, illegal waste dumps need to be identified before the application of ... -
Gasification of Aromatic Volatile Organic Compounds Generated from Petroleum and Refinery Industries with Syngas Recycling
(American Society of Civil Engineers, 2006)Gasification of mixed aromatic volatile organic compounds (AVOCs), natural gas, and motor oil conducted at -
Development of a University Laboratory Chemical Inventory and Exchange Program
(American Society of Civil Engineers, 2006)Because of the transient nature of research personnel and projects in the university environment, academic research laboratories are sources of a large quantity of hazardous waste on campuses. As a result, universities are ... -
Biologically Mediated Reductive Transformation of Ordnance Related Compounds by Mixed Aquifer Culture Using Acetate as the Sole Carbon Source: Laboratory Treatability Studies for Field Demonstration
(American Society of Civil Engineers, 2006)A series of column studies, with site-specific groundwater and aquifer material, were performed to evaluate the reductive biotransformation potential of different carbon sources (electron donors), and to assess the effects ... -
Column Study Simulating In Situ Bioremediation of Perchlorate Using Acetate as an Organic Substrate
(American Society of Civil Engineers, 2006)Perchlorate, which is highly soluble and is persistent in the environment, is being identified increasingly as a groundwater contaminant. Because perchlorate is biodegradable, a column study was conducted investigating the ... -
Bioremediation of Petroleum-Contaminated Soil Using Composting
(American Society of Civil Engineers, 2006)A site in Saskatchewan consisted of an earthen pit excavated in the ground and filled with petroleum waste (used oil, gasoline, diesel fuel, paint thinners). This pit was in use for approximately -
Remediation of a TCE Plume Using a Three-Component Strategy
(American Society of Civil Engineers, 2006)A residual source of trichloroethene (TCE) contamination in a deep, fractured basalt aquifer at the Idaho National Laboratory was generated by direct injection of chlorinated solvent-containing liquid waste and sanitary ... -
Simulation of Lead Ions Adsorption onto the Iron-Coated Medium: Dependent on Temperature and pH
(American Society of Civil Engineers, 2006)Heat was employed to coat crystalline goethite onto a quartz sand surface so that the adsorbent properties of the coating could be utilized. Adsorption experiments were conducted to further demonstrate the adsorption of ... -
Bioremediation of Hazardous Wastes—A Review
(American Society of Civil Engineers, 2006)Intensive industrialization generates hazardous wastes comprising organics, inorganics, heavy metals, and munitions that need to be tackled in a safe manner. Commonly employed physicochemical technologies have paved the ... -
Oxidative and Reductive Degradation of Mixed Contaminants by Bifunctional Aluminum
(American Society of Civil Engineers, 2006)Transformation of various contaminants including carbon tetrachloride (CT), methyl -
Enhancing Bioremediation with Enzymatic Processes: A Review
(American Society of Civil Engineers, 2006)The use of extracellular enzymes has been standard in many industries for many years; only recently have they been studied as a means for enhancing bioremediation. Extracellular enzymes are either secreted from organisms ...