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The biodegradation patterns of mixtures of the polycyclic aromatic hydrocarbons naphthalene, acenaphthene and fluoranthene in sediments
(1997)
The biodegradation patterns of polycyclic aromatic hydrocarbon (PAH) mixtures were studied in systems with and without sediments. Naphthalene showed no change in its behaviour in the presence of any other PAH. In sediment-free ...
Environmental model of Lake Harrison
(1979)
A model was developed to predict effects of future urbanization in Lake Harrison at The Woodlands, Texas. A steady-state model was formulated first to show general trends of monthly lake response to wet and dry climatic ...
A hydrogeologic database for stochastic groundwater modeling with hydrogeologic environment-specific applications
(1989)
The development of a method to restrict the land disposal of hazardous waste is an area of great concern for the United States Environmental Protection Agency. A proposed method is to determine allowable concentrations, ...
Post audit modeling of remedial clean up of a chlorinated hydrocarbon plume
(1988)
In 1984, a computer modeling study of a groundwater recovery system was conducted on a trichloroethylene (TCE) plume at an industrial site, using the USGS Solute Transport model. Since that time, the recovery well system ...
Implementation of a wellhead protection program utilizing a geographic information system
(1992)
The purpose of this research was development of a geographic information system (GIS) and linkage with existing ground-water models to expedite wellhead protection area (WHPA) delineation within a wellhead protection (WHP) ...
Videomicroscopy study of behavior of toluene in wet and dry heterogeneous porous media
(1992)
A novel bead-pack micromodel has been developed to observe directly with videomicroscopy movement and distribution of toluene in the subsurface, including effects of water infiltration, variations in the water table, and ...
Quantifying the retention and release of polyphosphonates in oil and gas producing formations using surface complexation and precipitation theory
(1996)
The prevention of scale is an important chemical process in many commercial applications, such as water purification, electricity generation, and chemical production. Scale prevention is especially important in the area ...
Effect of electrokinetic phenomena on membrane performance
(1996)
The effect of electrokinetic phenomena on the performance of ceramic membranes is studied. The results of experiments that evaluate the effects of the ionic strength, pH and the composition of the feed water on the performance ...
Estimation of contaminant concentration in ground water using a stochastic flow and transport model
(1996)
Bioplume II, a widely used computer model developed by researchers at Rice University, models the transport of dissolved hydrocarbons in ground water under the influence of oxygen-limited biodegradation. The model is ...
Ferrous carbonate precipitation kinetics: A temperature ramped approach
(1991)
Recent evidence indicates that ferrous carbonate (FeCO$\sb3$, siderite) plays a critical role in forming corrosion resistant scale. Although FeCO$\sb3$ also limits the solubility of iron in some anaerobic systems, its ...