Effect of Conowingo Dam Releases on the Water Quality of the Lower Susquehanna River
A modeling study was performed to assess the effects of flow releases from Conowingo Dam on the water quality of Conowingo Pond and the Susquehanna River downstream of the dam. Reservoir...

Los Angeles' Small Main Programs
Large quantities of small diameter mains within Los Angeles' water distribution network has necessitated the development of new main improvement programs. The introduction...

Model-Prototype Correlation of Mixing in a Wastewater Dechlorination Basin

A Review of Factors Affecting Recovery of Freshwater Stored in Saline Aquifers
A simulation analysis reported previously, and summarized herein, identified the effects of various geohydrologic and operational factors on recoverability of the injected water. Buoyancy...

Tunnel Saved by Flyash
When inspection early in 1986 showed that Detroit's Northeast Raw Water Tunnel was near collapse at one location, quick action and a unique use of flyash-cement grout or fill...

Modeled Effects of Hydraulic Mixing Devices on Reservoir Water Quality
A two-dimensional reservoir water quality model was used to evaluate effects of hydraulic mixing devices on release and water quality. Seasonal simulations of Douglas Reservoir water quality...

Salinity Intrusion in Louisiana Coastal Canals
Field data of the salinity intrusion in three Louisiana coastal canals were presented. In these canals, the mixing state can be categorized as, in general, well mixing at the Gulf side...

Waste Disposal in Coastal Waters
The increasing concentration of population and industry on coastal areas, is making greater demands for coastal disposal. However, the coastal waters are also used for recreation, and...

Spatial and Temporal Variability of Drilling Reserve Pit Fluids on the North Slope (abstract)
Reserve pits are constructed in connection with drilling activities to provide a convenient and safe disposal site for waste drilling muds and cuttings. During the winter months at Prudhoe...

Turbulent Transverse Shear Flows in Shallow Waters
Shallow turbulent mixing layers, generated downstream of a splitter plate between a fast and a slow open-channel flows of shallow water depth, were investigated experimentally for vertical...

A Model for Gravity Flows of Water-Granule Mixtures

Brownian Coagulation in the Initial Mixing Region of a Buoyant Plume
The paper discusses reactive systems that share the following common phenomenon: their reaction is either controlled by both kinetics and diffusion, or fully by diffusion. It reports on...

Analysis of a Production Well Through Sediments Containing Gas Hydrates
In some of the petroleum reservoirs recently discovered north of the Arctic Circle, production wells extend through thick permafrost. Several authors have reported zones of gas hydrate...

Particle Sizes in Flocculation and Sedimentation: Models and Experiments
D. F. Lawler et al. developed a model for flocculation, sedimentation, and filtration and predicted the effects of particle size distribution and concentration of the influent in water...

Solubility of Aromat6ic Solutes and Sorption onto Soil in Polar Solvent/Water Systems
An investigation was performed to evaluate the solubility and sorption of aromatic solutes onto soil from an aqueous phase containing polar solvent. This work relates to the evaluation...

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...

Flow and Mixing Calculations for a Two-Dimensional Reservoir Water Quality Model
A two-dimensional reservoir water quality box model has been developed and applied to several Tennessee Valley Authority reservoirs including a mainstem reservoir that is fully mixed vertically,...

Use of Asphalt in Treatment of Dam Foundation Leakage, Stewartsville Dam
This paper presents the recent development and application of a hot asphalt grouting technique used to stop a 5,000 Imperial Gallons Per Minute (IGPM) (22,000 lpm) dam leakage under full...

Cement Grouting: Water Minimising Practices
Water gives cement grout its mobility, but the water needed for mobility exceeds hydration requirements substantially in most applications. If this excess water is allowed to collect and...

Conserve On-Farm Irrigation Water with Soil-Cement

 

 

 

 

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