Evolution of Design: LA Metro Underground Structures

Successful Urban Rock Tunneling in Spite of Encountering Gasoline, Cleaning Solvents, and Methane Gas

Evaluating a Model of Anaerobic Digestion of Organic Wastes through System Identification

Potential for Anaerobic Treatment of Airport Deicing Fluids

Sodium Toxicity in Methanogenic Systems: Rates and Modeling

Reaeration Measurements Using a Methane Tracer at Six Dams in the Ohio River Basin

Biodegradation of Dichloromethane in Leachate
The biodegradation of dichioromethane (DCM) in landfill leachate is examined by means of a series of laboratory tests conducted in a controlled environment. These tests demonstrate that...

Fluid Inclusion Studies of Calcite Veins from Yucca Mountain, Nevada, Tuffs: Environment of Formation

Pros and Cons of Developing Recreational Facilities on Closed Landfills

In Situ Bioremediation Via Horizontal Wells
The U.S. Department of Energy, Office of Technology Development, has been sponsoring full-scale environmental restoration technology demonstrations for the past 3 years. The Savannah River...

Geocomposites Simplify Methane Barrier/Venting System Design
A case history describing the use of a geomembrane and geocomposite to simplify the design of a combined subsurface barrier and venting system is presented. The passive barrier and venting...

Advanced Integrated Wastewater Pond Systems
By incorporating special environments for methane fermentation and photosynthetic oxygenation, advanced integrated ponding systems attain high degrees of primary and secondary treatment...

Suburban Superfund
Discovery of methane seeping into houses at a new development near Newark, Del. set off investigations that eventually led to the U.S. EPA declaring the site eligible for Superund cleanup...

Aerobic Biodegradation of Chlorinated Solvents in Unsaturated Soils
A potentially attractive application of methylotrophic bacteria is in the treatment of contaminated, unsaturated soil. Methane and air could be supplied by injection and withdraw wells,...

Gas Transfer at Hydraulic Structures
Field measurements of gas transfer at hydraulic structures are notoriously difficult and imprecise. A technique which measures the transfer of hydrocarbon tracer gases has been tested...

Landfills: Lessening Environmental Impacts
Controlled recycling of leachates within landfills accelerates abaeribuc microbial reactions, thus converting refuse organics to methane. The process also enhances the precipitation rates...

Effects of Industrial-Municipal Co-Disposal
A study was conducted to evaluate the physical, microbiological, and chemical conditions of nineteen experimental landfills after the completion of a ten-year long municipal refuse/industrial...

Effects of Sampling Equipmenton the Chemical Integrity of Groundwater Samples
Proper sampling of groundwater is one of the basic steps in monitoring movement of pollutants in groundwater systems. The effect of the use of silicone rubber when used as a bladder in...

Leaching Characteristics of Metal Finishing Sludges
The purpose of this research was to study the feasibility of biodegrading phenolics to methane by thermophilic anaerobic treatment. The study was a feasibility level assessment which examined...

Distillery Wastes Treated and Recovered Energy Saves $1 Million/Yr
The waste treatment and energy recovery for the world's largest rum distillery (Bacardi Corp., San Juan, Puerto Rico) uses an aerobic digestion to treat distillery wastes...

 

 

 

 

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