Optimization Models for Acid Rain Control
A series of related optimization formulations are presented for developing and analyzing acid rain control strategies. These models span a wide array of approaches and reflect a similarly...

Screening Emissions Control Measures
Under the new Clean Air Act, electric utilities will be able to choose from a wider range of sulfur dioxide emissions control options than in the past. Among the newly available measures...

Acid Mine Drainage: An Overview
In the United States, acid mine water adversely affects over 6,500 km (4,000 miles) of rivers and streams. This is, however, a significant improvement over the situation two decades ago....

A Model to Predict the Production Rate of AMD
Results generated from a model to deterministically calculate the production rate of acid mine drainage compared to those generated by an empirical model are nearly identical. The model...

Wetlands for Acid Mine Drainage Treatment
Wetlands are being constructed on mined lands to treat acid mine drainage. Most of these wetlands remove a substantial amount of iron and sulfate from the water, but manganese removal...

Acid Mine Drainage Control Utilizing Fly Ash
Acid mine drainage is a serious environmental problem confronting the Appalachian region. Fly ash, the air particulate residual from the combustion of coal, is also an environmental concern...

Overview of Acid Mine Drainage Control Strategies
Since 1970, regulations requiring proper overburden sampling techniques to obtain representative geologic profiles and outline specific overburden analysis to determine acid-producing,...

Dissolution of Spent Fuel Under the Conditions of Wet Storage and Disposal
The release of cobalt and cesium from PWR spent fuel rods with three types of artificial defects made on their clads in demineralized water and also the dissolution of uranium from unirradiated...

Formic Acid Requirement for Savannah River Site Defense Waste Processing Facility Melter Feed Preparation (U)
The Westinghouse Savannah River Company (WSRC) will vitrify the high-level radioactive waste into a borosilicate glass wasteform using a slurry-fed, joule-heated melter. Formic acid is...

Effect of HNO3-Cerium(IV) Decontamination on Stainless Steel Canister Materials
Stainless steel canisters will be filled with vitrified radioactive waste at the West Valley Demonstration Project (WVDP), West Valley, NY. After they are filled, the sealed canisters...

Modelling Studies for the Assessment of the Advanced Cold Process Canister
The Advanced Cold Process Canister (ACPC) is a new concept for the encapsulation of spent nuclear fuel for geological disposal. It consists of steel canister encased in a copper overpack....

Effect of Ionizing Radiation on the Waste Package Environment
The radiolytic production of nitrogen oxides, nitrogen acids and ammonia are discussed in relation to the expected environment in a high-level waste repository that may be constructed...

Energy in the 90's
This proceedings consists of papers presented at the specialty conference Energy in the Nineties which was sponsored by the Energy Division of the American Society of Civil Engineers and...

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...

Interruption of Sewer Crown Corrosion—Ecological Solutions
Competitive inhibition of acid production by thiobacilli was investigated by encouraging the growth of potential competitors. Two-organism competition experiments (Thiobacillus sp. vs....

Evaluation of Waste Fly Ash Pretreatment Process
A batch acid-leaching pretreatment process was investigated for its potential to reduce toxicity and leachability of a municipal waste combustor fly ash prior to land disposal. Elemental...

The Effect of Operational Parameters on the Acid-phase Anaerobic Fermentation in the Biological Phosphorus Removal Process
A series of laboratory-scale, continuous flow experiments has been employed to study the effects of selected HRTs and SRTs on the acid-phase fermentation of primary sludge. The VFA production...

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...

Influence of the Deposition of Anthropogenic Organic Substances from the Atmosphere on Ground-Water Quality
Large amounts of organic substances are emitted into the atmosphere as a consequence of human activity. The primary emissions as well as their atmospheric reaction products reach the soil...

Safety in the Construction Industry
Although the construction industry employs only 5% of the workforce, it comprises 20% of all accidents and 26% of all occupational related fatalities. The costs of acidents is 9 billion...

 

 

 

 

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