Sediment Pollution: Solving "Rill" Problems Using RECPs
Sediment pollution causes an estimated $16 billion in environmental damage annually. Sediment is the most common pollutant in rivers, streams, lakes, and reservoirs, causing such negative effects as temperature...
Purging the Plastics
A full-scale floating system designed to clean up the Great Pacific Garbage Patch for a fraction of the cost and time of traditional methods has been deployed....
Ground Feature Monitoring Using Satellite Imagery: How Interferometric Stacking of SAR Can Mitigate Geo-Disasters Along Transportation Corridors
Landslides, debris flows, and other types of ground movements are among the most common hazards to humans and infrastructure. According to the United States Geological Survey, annual domestic...
Rebuilding America's Infrastructure
During the years immediately following World War II, the United States built the greatest infrastructure in the modern world. As we move into the 21st centruy, however, we find that this...
Taking Treatment to the Extremes
Designing a wastewater treatment facility that meets current environmental guidelines can be challenging enough. But designing it so it can be shipped, constructed, operated, and maintained...
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...
Impacts of CSO Swirl Concentrator on Dissolved Oxygen Concentrations in the Anacostia River
Purpose: To assess impacts of the CSO control, two continuous monitoring stations were located upstream and downstream from the CSO outfall. The monitors recorded dissolved oxygen (DO),...
Rebuilding Bosnia
A civil engineer serving in the U.S. Army Reserve on deployment in Bosnia-Herzegovina gives a first-hand account of construction in a war-torn country. As a member of the Environmental...
Nothing Wasted
Anoxic gas flotation (AGF), a patented system for anaerobic digestion of organic slurry waste, can recover as much as 85% of the phosphorus and 23% of the nitrogen in slurry waste, while...
Recycled Materials for Embankment Construction
Obtaining good quality soils at reasonable costs for use in embankment construction is becoming difficult and hence, attention is directed towards finding alternative materials. On the...
Role of Constituents on the Behavior of Flowable Fly Ash Fill
Flowable fills are increasingly used as backfill materials for pipes and retaining structures because of ease of placement and performance of the solidified material. But the role of its...
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...
Balancing Act (Available only in Geoenvironmental Special Issue)
On March 9, 1996, at the Rumpke sanitary landfill near Cincinnati, a precariously overbuilt waste slope collapsed and more than 20 acres of waste slammed into an adjacent excavation site....
Waste Not: The Scottsdale Transfer Station (Available only in Structural Engineering Special Issue)
Scottsdale, Ariz., is one of the fastest growing cities in the U.S. In 1980, it had 88,000 residents; in 1997, it had 170,000. By 2020, demographers expect the population to surpass 275,000....
Final Covers for Solid Waste Landfills and Abandoned Dumps
This book presents the essential elements for the design of final covers for solid waste landfills and abandoned dumps. Chapter 1 gives an overview and presents selected aspects of regulations...
Debris-Flow Hazards Mitigation
Mechanics, Prediction, and Assessment
This proceedings,
Pier Width and Local-Scour Depth
Presented here are the results of an enquiry into the effects of pier width on local scour depth. The results show that scour depth does not scale linearly with pier width unless there...
An Analysis of Characteristics of Basset Force on Particles Accelerating in Arbitrary Flow Field
In present study of solid-liquid two phase flow, the effect of Basset force on a particle moving unsteadily in a non-uniform flow is not very clear. For this reason, the properties of...
Upper Chehalis River Pollutant Capacity and Load Allocations
Dry season water quality was evaluated in the Upper Chehalis River in western Washington state, focusing on low dissolved oxygen (DO), and using the Total Maximum Daily Load (TMDL) process....
Salinity and Hydraulic Issues at a Constructed Wetlands
A constructed wetlands at Boulder City, Nevada was designed to use effluent pumped from the City's wastewater treatment plant. The design was complicated by the highly permeable...
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