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...
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...
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...
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...
Optimization Study of a Leachate Treatment System
A treatability study was conducted to evaluate the need for a metal precipitation and an ammonia stripping process in a leachate treatment system and to evaluate the biological nitrification...
Evaluation of Sludge Screening and Screenings Dewatering Technologies
The concept of digested sludge screening has been utilized at the City of Los Angeles' Hyperion Treatment Plant to remove extraneous objects, hair, and fibrous material in...
Crossflow vs. Counterflow Air Stripping Costs
Crossflow towers offer a potential economic advantage over counterflow towers due to savings in fan power costs as well as material costs. These savings increase as contaminant volatility...
Air Stripping of Refinery Effluent for TC Compliance
In order to manage the risk that the water effluent may at times exceed the limits of the USEPA final Toxicity Characteristics (TC) rule which came into effect on September 25, 1990, a...
Complete Recyling in the Organics Chemicals Industry
Regulations for both direct and indirect discharges have become so stringent in order to protect the environment that wastewater treatment and effluent levels in the organics chemicals...
Continuing Effort to Eliminate Odors at Orange County's Wastewater Treatment Plants
The County Sanitation Districts of Orange County (CSDOC), California own and operate two wastewater treatment plants. Reclamation Plant No. 1, in Fountain Valley, treats approximately...
Substrate Effects on Methanotrophic Trichloroethylene Degradation
Formate up to 1g/L had no significant enhancing effect on the degradation of trichloroethylene (TCE) by three mixed enrichments of methane-oxidizing bacteria. Methanol did not enhance...
Degradation of 1-Naphthylamine by Activated Sludge Using Bioaugmentation
This paper presents the results of ongoing research using a novel bioaugmentation scheme for activated sludge (AS) treatment of trace levels of a hazardous compound (1-Naphthylamine, 1NA)....
The Ozone Layer: A Critical Analysis of the Management of Public Policy for Fluorocarbons
As environmental public policy becomes increasingly extensive it continues to have greater impact on the lives of each American. The management of the public policy formation process varies...
Magnetic Fluid Conditioning
Industry is now turning to develop magnetic water treatment in an effort to discontinue the use of chemicals. Magnetic water treatment takes a different approach to solving the same problem...
Products of Chloramination in Dilute Aqueous Solution
Chloride and nitrate formation was determined in the reaction of chlorine with ammonia in molar excess, in dilute aqueous solution. Nitrate was formed under all conditions investigated....
Chemical Sludge Treatment?A Way of the Future
Recently, chemical treatment of municipal sludges has become an alternative to incineration, composting, and digestion. The commercial processes have evolved into three categories of chemical...
Degradation of Ortochlorophenol in Aerobic and Anoxic-Aerobic Processes
Removal of OCP in sequencing batch reactors was shown to be independent of the presence or lack of co-substrate and independent of SRT for fully aerated reactors. The reactors with an...
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