Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management: Recent submissions
Now showing items 381-400 of 519
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A Discourse on the Study of Environmental Multimedia Transport
(American Society of Civil Engineers, 2002) -
VOC and SVOC Emissions from Slurry and Solid Phase Bioremediation Processes
(American Society of Civil Engineers, 2001)Gaseous emissions of volatile organic compounds (VOCs) and semi-VOCs (SVOCs) from slurry and solid phase bioremediation processes were evaluated. The specific processes considered were those used for the bioremediation of ... -
Phytoremediation Potential and Toxicity of Barium to Three Freshwater Microalgae: Scenedesmus subspicatus, Selenastrum capricorntum, and Nannochloropsis sp.
(American Society of Civil Engineers, 2001)Three fast-growing, freshwater microalgal species, -
Model-Predicted Groundwater Circulation Well Performance
(American Society of Civil Engineers, 2001)Groundwater circulation well (GCW) techniques are an innovative remedial technology that may effectively remediate contaminated groundwater in areas unfavorable to more traditional technologies. Traditional pump-and-treat ... -
Pathogen and Pathogen Indicator Removal Characteristics in Treatment Wetlands Systems
(American Society of Civil Engineers, 2001)This paper reports the performance of two horizontal subsurface flow constructed wetland systems in the removal of pathogen and pathogen indicators under variable loading and operating conditions. The two constructed wetland ... -
Plant Uptake of Methyl <b><i>tert</i></b>-Butyl Ether (MTBE) from Ground Water
(American Society of Civil Engineers, 2001)Methyl -
Operation of Full-Scale Oily Wastewater Treatment System
(American Society of Civil Engineers, 2001)An aluminum company that produces an oily wastewater upgraded their wastewater treatment facilities to prevent ground and surface water contamination. Applying pilot-scale data collected over a 2.5 year period, the following ... -
Plant-Enhanced Remediation of Glycol-Based Aircraft Deicing Fluids
(American Society of Civil Engineers, 2001)To ensure passenger safety during flight operations, the Federal Aviation Administration demands the use of glycol-based aircraft deicing fluids (ADFs) at airports. However, from the deicing process a significant amount ... -
Landfill Capping with Woodland Ecosystems
(American Society of Civil Engineers, 2001)As the field of phytoremediation has evolved over the last 10 years, there has been a growing interest in the use of vegetative covers as alternative landfill caps. Consequently, a number of vegetative caps (grass, shrubs, ... -
Uranium Speciation, Plant Uptake, and Phytoremediation
(American Society of Civil Engineers, 2001)Phytoremediation of uranium (U) contaminated soil has been hampered by a lack of information relating U speciation to plant uptake. The goals of the present study are to (1) provide fundamental information regarding uptake ... -
Benzene Toxicity and Removal in Laboratory Phytoremediation Studies
(American Society of Civil Engineers, 2001)Hybrid poplar cuttings were shown to impact the fate and transport of subsurface benzene, while toxicity to the poplars was not observed. Laboratory experiments investigated the toxicity response of poplar cuttings to ... -
Measuring Phytoremediation Parameters for Volatile Organic Compounds: Focus on MTBE
(American Society of Civil Engineers, 2001)Experimental techniques are described for conducting greenhouse tests to examine the pathways for phytoremediation of volatile organic compounds (VOCs), distinguishing between uptake of the VOC along with water transpired ... -
Editor's Note
(American Society of Civil Engineers, 2001) -
Predictions of Biotreatability and Actual Results: Soils with Petroleum Hydrocarbons
(American Society of Civil Engineers, 2001)The hypothesis evaluated was that the extent to which a contaminated soil undergoes weathering prior to treatment affects the degree of chemical loss that occurs during bioremediation. The hypothesis was evaluated using ... -
Correlation Analysis of Laboratory Compaction of Fly Ashes
(American Society of Civil Engineers, 2001)Fly ash, a waste from thermal power stations, has been used in many countries to build highway embankments, fills, landfill liners, and covers. The maximum dry density (MDD) and optimum moisture content (OMC) of fly ash ... -
Class A Pathogen Reduction in the SSDML Process
(American Society of Civil Engineers, 2001)The agricultural use of sewage sludge is limited by the presence of toxic metals and pathogens. The simultaneous sludge digestion and metal leaching (SSDML) process has been developed to resolve this problem. In the present ... -
Use of Landfill Gas for Electricity Generation
(American Society of Civil Engineers, 2001)The feasibility of using landfill gas (LFG) for electricity generation at four St. Louis, Mo., area landfills was explored using the U.S. EPA's E-PLUS (Energy Project Landfill Gas Utilization Software). The estimated ... -
Practical Bedrock Aquifer Characterization Using Borehole Geophysics and Multilevel Wells
(American Society of Civil Engineers, 2001)Characterizing and monitoring contaminated bedrock aquifers remains an enormous challenge with important consequences. Investigations of bedrock aquifers are challenging for two principle reasons: heterogeneity and costs. ... -
Strategy for Landfill Design in Arid Regions
(American Society of Civil Engineers, 2001)The environment and human health of Kuwait, a developing arid country, is in jeopardy due to improper waste disposal management. Hazardous and liquid wastes are frequently commingled with municipal solid waste, which ... -
Factors Affecting Chromium(VI) Removal by Modified Poly(4-Vinylpyridine) Coated Silica Gel
(American Society of Civil Engineers, 2001)A reactive polymer, alkyl quaternized poly(4-vinylpyridine) (PVP) was synthesized and coated on the surface of silica gel to test its ability to remove Cr(VI) from water. Batch experiments were conducted with the coated ...