Controlling Sulfide Corrosion in Large Diameter Gravity Sewers (
The County Sanitation Districts of Los Angeles County undertook a major evaluation of sewer system ranging in size from 1. 22 to 3. 65 meters in diameter that transports peak wastewater...
Ft. Lauderdale Wellfield Protection
Results of the study on groundwater contamination measurement and control are reported. The goal of this study was to ensure a safe and long-term supply of drinking water to the City of...
Two Dimensional Numerical Simulation of Subsurface Contamination by Organic Compounds - A Multiple Approach
In recent years, much attention has been focused on the migration of the soluble portion of an organic contaminant in groundwater systems. Little work, however, has been directed towards...
Characterization of Indoor Carbon Monoxide Levels Produced by the Automobile
Integrated air samples were obtained at seven small and six large service stations and two dealerships. These establishments were sampled during cold and warm weather operations for eight...
Predicting Areas of Groundwater Contamination
Logistic regression has been used to estimate the probability that a metropolitan area will contain one or more water supply sites with contamination by one or more of six frequently occurring...
Enhanced Mobility of Polynuclear Aromatic Compounds in Soil Systems
The objective of this study was to determine adsorption isotherms for polynuclear aromatic (PNA) compounds in methanol and a mixture of 50 percent methanol 50 percent water. The adsorption...
Treatment Plant Comparisons in Removing Molecular Weight Fractions of THM Precursors
This paper describes the performance of several types of water treatment plants in removing various molecular weight fractions of natural occurring aquatic organic matter, some of which...
Direct Filtration of Colored Water Supplies
The effects of raw water quality, chemical treatment, and filtration variables on the performance of direct filtration are examined. Cationic polyelectrolytes as sole coagulants are effective...
Predicting Carbon Adsorption of Organics from Humid Air
Increased levels of humidity resulted in reduced adsorption capacity for trichloroethylene (TCE) at low influent concentrations on a microporous activated carbon. Water vapor also reduced...
Evaluation of Risks Associated with Dioxin Emissions From a Resource Recovery Facility
Dioxin emissions from resource recovery facilities are a current concern to the application of this technology in the disposal of municipal refuse. A quantitative risk assessment performed...
Effect of Shallow Trench Construction on Cast Iron Pipelines
This paper summarizes the results of three-dimensional finite element analyses to evaluate the strains and displacements sustained by 4, 6, and 8-in. (100, 150, and 200 mm)-diameter cast...
Research Needs for Extant Iron and Steel Buildings
A brief review of iron- and steel-making processes is background for the development of shapes and codes. Sources of information for the condition assessment of iron and steel buildings...
Center Pivots: Iron Dinosaurs of Ogallala Aquifer
In mid-1983, USDA's Soil Conservation Service (SCS) staff in Colorado began a 5-year project aimed at reducing the amount of water the state extracts from the Ogallala aquifer....
Report of the Working Group on Iron and Steel Buildings
Modeling Groundwater Transport of Organic Compounds
Hydrogen Sulfide Removal Systems for Digester Gas
Predicting the Removal of Known Organic Compounds in Unknown Mixtures and Total Halogan in Fixed-Bed Adsorbers
Size Effects in Adsorption of Macromolecular Organic Matter
Research for the Treatment of Organics in Drinking Water
Slurry Pipeline Control Systems
The paper documents the La Perla-Hercules pipeline and its control system. This eight and fourteen-inch, 382-kilometer iron ore concentrate slurry pipeline was commissioned in June of...
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