Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management: Recent submissions
Now showing items 301-320 of 519
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Dechlorination of Hexachlorobenzene by Zero-Valent Iron
(American Society of Civil Engineers, 2004)Chemical reduction of hexachlorobenzene (HCB) by metallic iron was investigated. Since the percentage of HCB transformation is almost the same as that of chloride ion production, no chlorinated intermediates in the solution ... -
Reduction of Natural Organic Matter and Disinfection By-Product Precursors by Coagulation and Adsorption
(American Society of Civil Engineers, 2004)Source water from King-Men Reservoir water in Taiwan was treated by alum and polyaluminum chloride coagulation, and the corresponding natural organic matter was fractionated by ultrafiltration membranes for determining its ... -
Preliminary Study on Treatment of Soil Enriched in Chromite Ore Processing Residue by Electrokinetics
(American Society of Civil Engineers, 2004)The effectiveness of the electrokinetic (EK) process in treating soil enriched in chromite ore processing residue (Cr–soil) was investigated. An electric gradient of 1.2 V/cm was applied to induce the movement of electrolyte ... -
Integrated Chemical-Biological Remediation for Polycyclic Aromatic Hydrocarbons Contaminated Soil
(American Society of Civil Engineers, 2004)An integrated slurry-phase remedial system was developed for cleanup of polycyclic aromatic hydrocarbon (PAH) contaminated soil in Singapore. The bench-scale remedial system consisted of a chemical treatment to initiate ... -
Microbial Dechlorination of Hexachlorobenzene by Untamed Sediment Microorganisms in Taiwan
(American Society of Civil Engineers, 2004)To test the inherent hexachlorobenzene (HCB) dechlorination ability of indigenous consortia in Taiwan, microbes from four non-HCB-contaminated river sediments were collected and directly introduced to dechlorination ... -
Optimal Groundwater Management Model in a Two-Aquifer System
(American Society of Civil Engineers, 2004)An optimal model is developed for determining the well sites and their pumping rates from the upper aquifer and lower aquifer in a two-aquifer system, which is designed to prevent the water quality in lower aquifer from ... -
Control of Total Chloro-<i>s</i> -Triazines in Conventional Drinking Water Treatment Plants
(American Society of Civil Engineers, 2003)Chloro- -
Applicability of Oxidation Reduction Potential Response on a Full-Scale Intermittently Aerated Suspended Culture System
(American Society of Civil Engineers, 2004)On-line monitoring of oxidation reduction potential (ORP) was conducted at the full-scale aeration basin operated with intermittent aeration schedules and fed with the wastewater generated from fruit fly rearing facility ... -
Endocrine-Disrupting Compounds in Wastewater, Sludge-Treatment Processes, and Receiving Waters: Overview
(American Society of Civil Engineers, 2004)This paper presents a detailed overview of endocrine-disrupting chemicals in which the writers discuss the disrupter agent modes of action, the impact evidence on humans, the different methods of analysis, and the difficulties ... -
Stabilization/Solidification of Noncombustible Industrial Waste by Asphalt Emulsions
(American Society of Civil Engineers, 2004)A procedure for stabilization/solidification of loose waste from the manufacture of Ni and Cd electrodes, which represents a nonutilizable and noncombustible hazardous waste, has been worked out. The procedure comprises ... -
Occurrence of Endocrine-Disrupting and Other Wastewater Compounds during Water Treatment with Case Studies from Lincoln, Nebraska and Berlin, Germany
(American Society of Civil Engineers, 2003)Research on the fate and transport of endocrine-disrupting compounds and other organic wastewater compounds released into the environment and their potential presence in drinking water is in its infancy. Studies conducted ... -
Design, Construction, and Operation of Tailored Permeable Reactive Barriers
(American Society of Civil Engineers, 2003)In Germany, nine permeable reactive barriers (PRBs) for passive in situ remediation of contaminated groundwater have been erected over the last 3 to 4 years (in Bernau, built 2001; Bitterfeld, 1999; Denkendorf, 2000; ... -
Editor's Note
(American Society of Civil Engineers, 2004) -
Monitoring the Tendency of Heavy Metals Leached from Cement Mortar
(American Society of Civil Engineers, 2004)This study presents the results of two leaching tests for cement mortars. Industrial sludge slag is employed as a fine aggregate to determine the mortar’s leaching tendency. The proportion of quartz sand replaced by slag ... -
Heavy Metals in Bottom Ash from a Medical-Waste Incinerator in Thailand
(American Society of Civil Engineers, 2004)Investigations were carried out to study the heavy metal content in the bottom ash from the medical-waste incinerator of Ratchasima-Thonburi Hospital in the northeastern city of Nakhon Ratchasima in Thailand. Relationship ... -
Biological Wastewater Treatment and Estrogenic Endocrine Disrupting Compounds: Importance of Colloid Organic Carbon
(American Society of Civil Engineers, 2003)Understanding the behavior of estrogenic endocrine disrupting compounds (EEDCs) during biological wastewater treatment is a critical aspect of protecting aquatic ecosystems and drinking water supplies. Binding coefficients -
Total and Volatile Polyaromatic Hydrocarbon Losses during Aerobic Slurry Phase Biotreatment
(American Society of Civil Engineers, 2003)The suitability of an aerobic biological treatment process for the removal of polyaromatic hydrocarbon (PAH) from a creosote contaminated field soil was evaluated. Project objectives were to determine: (1) the overall loss ... -
Endocrine Disruptors as a New Regulatory Endpoint
(American Society of Civil Engineers, 2003)The U.S. Environmental Protection Agency (U.S. EPA) has been mandated in the 1996 Food Quality Protection Act and 1996 Safe Drinking Water Act Amendments to develop and implement a screening and testing program for endocrine ... -
Statistical Prediction of Atmospheric Corrosion from Atmospheric-Pollution Parameters
(American Society of Civil Engineers, 2003)Pollution plays an important role in the corrosion of metals. This work deals essentially with atmospheric corrosion at Oman to assess the degrading effects of air pollutions on various metals that are mostly used in the ... -
Evaluation of Color Changes in Sewage Sludge Ash Brick by Using Image Analysis Method
(American Society of Civil Engineers, 2003)Quantifying the surface color changes by digital image analysis to assess the quality of the sewage sludge brick is investigated. Relationships among the firing temperatures, percent weight of incinerated sludge ash added, ...