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2012 OPAL Awards Videos
Introductions for ASCE's 2012 Outstanding Civil Engineering Achievement award finalists along with the acceptance speech of the winner, the Hoover Dam Bypass. Also shown are...

Mapping Aquifer Zones Based on Microbial Ecology and Geochemistry in a Landfill Leachate Plume with a Self Organizing Map
We implemented a self-organizing map to delineate aqueous geochemistry and microbial ecology in landfill leachate. In subsurface ecosystems microorganisms mitigate a myriad of chemical...

Modeling Fort Ord Site OU2's Remediation System Using Optimization
Fort Ord.s Site OU2 is located approximately 80 miles south of San Francisco near Monterey Bay in Monterey County, California. Fort Ord contains two landfills which were used for residential...

Examining the Alternatives
A study being conducted at the variety of locations around the country is investigating whether landfill covers made of fine soils and vegetation can be just as effective as traditional...

Under Cover
In capping a 190-acre hazardous landfill in metropolitan Los Angeles, engineers saved time and money by relying on a construction method seldom used in the environmental sector: design/build....

Consolidated Effort
Engineers remedied a landfill polluted with polychlorinated biphenyls by removing the most contaminated detritus and consolidating the rest under a multilayered, impermeable cap....

Finding a Better Cover
An ongoing field test at Sandia National Laboratories, in Albuquerque, New Mexico, compares a basic soil and a compacted clay landfill cover currently prescribed by Environmental Protection...

Solid Ground
The densely populated island nation of Singapore has no choice but to be creative in devising strategies for disposing of solid waste. With its tiny land mass and the fact that its single...

Monitoring the Fresh Kills Landfill (Available in the Geoenvironmental Special Section only)
A unique system has been developed to assess the stability of the Fresh Kills Landfill, in New York City, using more than 260 geotechnical instruments and automatic processes. The system...

Putting Down Roots
Phyto-covers are environmentally friendly and cost-efficient landfill barriers. Compared to traditional clay or geofabric caps, phyto-covers require less maintenance and are more friendly...

A Risk-Based Approach to Subsurface NORM Disposal
(No paper) Naturally occurring radioactive materials (NORM) has become an environmental concern for the petroleum industry. NORM scales results when naturally occurring radium co-precipitates...

Theoretical and Empirical Implications of Increasing Block Rates
(No paper) The U.S. Army disposed chemical agents, laboratory materials, and unexploded ordnance at the O-Field landfill from before World War II until at least the 1950s. Soil, ground...

Stretching a Landfill
Landfill expansions can pose engineering challenges, and the Tullytown, Pa., landfill gives an example of a horizontal expansion that added 121 acres of future disposal space. The side-by-side...

Paper Mill Sludge Landfill Cover Construction
A considerable amount of experience has been acquired from a number of completed paper mill sludge landfill covers within the United States. This paper focuses on practical guidelines...

Database on Beneficial Reuse of Foundry By-Products
This paper describes a database on beneficial reuse of foundry by-products that was assembled at the University of Wisconsin-Madison. The database was designed to identify (1) materials...

Quarry Conversion
All over the country, old landfills are filling rapidly, and potential new sites�and public support for them�are in short supply. Cities are faced with increasing solid waste disposal...

Alternative Landfill Covers Pass the Test
Researchers at the Sandia National Laboratories in Albuquerque, N.M., are conducting a large-scale field demonstration comparing final landfill cover designs in arid and semi-arid regions....

Putting On Your Safety Cap
Geomembranes are an important part of landfill cap design. However not all geomembrane liners are created equal, and it's best to know what a liner is made of before specifying...

Dredging Up Toxic Sediments
Lots of people like to catch their fish and eat them too, but that's a dangerous proposition when they're fishing in water polluted with highly toxic pesticides....

Mapping with a Differential
A southern New Jersey landfill is using Differential Global Positioning System topographic surveying to cut costs and turnaround time on annual mapping and volume certification. Modern...

 

 

 

 

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