A Turbulence Model for Transverse Mixing in Rivers
A two length-scale turbulence model is developed to simulate transverse mixing prosesses in rivers. The dispersion of the effluent from the MUC (Montreal Urban Community) sewage treatment...
A Phenomenological Approach to Physico Chemical Phenomena Coupled with Damage in Massive Concrete
This paper presents the first experiments which have been done to support the bases of a thermomechanical model coupled with damage and to identify the characteristics parameters needed...
Microscopic Modeling of Shear Strength of Contaminated Soils
The degradation of shear strength of soils due to prolonged contamination of soils is an emerging problem. The experiments conducted at New Jersey institute of Technology showed a gradual...
Effects of Hurricane Hugo On Water and Wastewater Systems of the Charleston Commissioners of Public Works
Hurricane Hugo had a major impact on the operations of the Charleston Commissioners of Public Works in their effort to provide safe water and wastewater service to their customers. Through...
Moored Systems for Time Series Observations of Bio-optical and Physical Variability in the Coastal Ocean
Recently, multivariable moored systems (MVMS) have been developed to study the ecology and physics of the upper ocean. Concurrent MVMS measurements provide time series of beam attenuation...
Measurements of Nutrient and Metal Fluxes from the Sea Floor in the Area Around the Whites Point Sewage Outfall, Los Angeles, California
Studies are underway to determine the influence of sewage outfall-impacted sediment on the exchange of nutrients and trace metals in the coastal marine environment. Utilizing a benthic...
Mixing and Dispersion Processes in the Vicinity of an Ocean Outfall System in Southern California
Ocean wastewater plumes are important for the disposal of municipal wastes in Southern California. These plumes, which are discharged from sanitation systems, can be distinguished in the...
The Torres Strait Baseline Study: Environmental Protection of a Tropical Marine Environment in Northern Australia
This paper discusses the potential impacts of mining in the Fly River catchment area of Papua New Guinea on the Torres Strait marine environment and the customary ways of life of the Torres...
The Case for Managed Open Water Disposal of Sediments Containing Low Levels of Dioxin
Between 6 and 8 million cubic yards of material is dredged annually from the 240 miles of federal channels and approximately one million linear feet of berthage of the Port of New York/New...
Halifax Harbour Clean Up?A Research Perspective
The status of scientific research pertaining to the marine environmental aspects of the discharge of sewage effluent into Halifax Harbour, Canada is reviewed. The background to the local...
Results from Selected Oil-Spill Response Research
Recent large oil spills from tankers have reaffirmed the need for continuing technology assessment and research to improve oil-spill response capabilities. The Minerals Management Service...
Chemical Treating Agents for Oil Spill Response?Recent Research Results
Laboratory effectiveness tests have been developed for four classes of spill-treating agents; solidifiers, demulsifying agents, surface-washing agents and dispersants. Currently-available...
Environmental and Economic Feasibility of Water Supply Alternatives in Hawaii and California: Desalination, Water Marketing and Conservation
Increasing urban demand for potable water in Honolulu, Hawaii and Santa Barbara, California, jeopardizes scarce supplies. The objective of this analysis is to compare the costs and benefits...
The 301(h) Waiver & the Clean Water Act in Southern California
Throughout the late 1970's and 1980's Los Angeles City and county governments fought the Clean Water Act from being implemented. An amendment to the Clean Water...
Waste Water Disposal from Coastal Communities Economic and Environmental Consequences of Green Politics
As a result of increasing pressure from the European Commission and environmental groups the UK Government announced, in March 1990, that it would no longer allow the discharge of untreated...
Controlling Nitrogen Loading to Coastal Waters
Of the countless contaminants that reach coastal waters, nitrogen is one of the most problematic and least regulated. There is ample evidence that many coastal embayments are overwhelmed...
Mercury-Contaminated Sludge Treatment by Dredging in Minamata Bay
To eradicate Minamata disease, caused by sewage containing methyl mercury accumulating in fish and shell-fish through the food cycle, a large-scale sediment disposal project was conducted...
Acidic Polysaccharides from Marine Organisms
Different types of acidic polysaccharides have been extracted from various marine organisms. The chemical composition and structural studies of these molecules established that the main...
An Overview of Chemical Contaminants Throughout the Coastal and Estuarine United States
Informed decisions on the use and management of the nation's resources requires convenient access to current and reliable information. Since 1984, the National Oceanic and...
The Challenge of Meeting New Effluent Guidelines
Meeting new effluent guidelines is presenting a challenge to the environmental engineer. In most cases, existing plants must be retrofitted which will involve options of source treatment,...
Return to search