Clean-up in the Rockies
The shallow aquifer flowing beneath the Rocky Mountain Arsenal, just outside of Denver, has become contaminated with a number of toxic substances. Until the arsenal can be cleaned-up,...
Cleaning Up Toxics
Case histories show how several different types of contamination cleanup were handled. In Attleboro, Mass., washwater, used to decontaminate equipment and tools after cyanide was removed...
Treatment in Your Own Backyard
Everyone wants the nation's hazardous waste sites cleaned up, but nobody wants the wastes disposed of near them. Therefore, cleaning up these problems at the site may be the...
Risk Assessment: Engineering Tool
In factoring in human-health impacts when tackling an environmental problem, risk assessment is often the best approach. Its use is growing fast. The technique increasingly is being used...
Structural Settlements at a Major Power Plant
The foundation design for the Intermountain Generating Station was based on comprehensive geotechnical investigations that included cone penetrometer tests, borings, pressuremeter tests,...
Settlement of a Reactor Containment on Sand
In this paper, predicted and observed settlements are presented for the reactor containment structure of the Beaver Valley Power Station - Unit 2, Shippingport, Pennsylvania. The Beaver...
Disney Engineers Voyage to the Deep
The main show at the Living Seas Pavilion, part of Walt Disney Production's EPCOT Center, Lake Buena Vista, Fla., is a visit to a tropical coral reef deep under the ocean....
Recent Advances in Structural Dynamics
The four papers in this book emphasize the design, testing, and analysis of large structures. The topics covered include base isolation in the design and construction of power plant structures,...
Treating Sewage in One Tank
A sequencing batch reactor (SBR) was the answer to a sewage problem that was holding up community development in Poolesville, MD. Poolesville was one of the first municipalities in the...
Drying Out
Treatment plants are most efficient when they're treating waste, not water. Spurred on by increased fuel prices, a number of new technologies have been developed that can...
Bugs and Carbon Make a PACT
At its Chambers Works in southern New Jersey, DuPont was ordered to sharply reduce the BOD load in the wastewater it discharged to the Delaware River. Out of this mandate came the PACT...
Cone Penetrometer Use on Uranium Mill Tailings
Piezocone data were found to be very reliable in the identification of uranium tailings according to the traditional categories of sands, sand-slime mixtures, and slimes by the use of...
CPT/DMT QC of Ground Modification at a Power Plant
The use of 908 static cone penetration test (CPT) and 33 Marchetti dilatometer test (DMT) soundings provided the quality control (QC) needed to improve a power plant site by the use of...
Putting Wastewater to Work
Although the central Florida city of Altamonte Springs sits on one of the world's most productive aquifers, the Floridan Aquifer, the town is investing $35 million in a system...
Implications of Soluble Microbial Products (SMP) Formation on Biofilm Reactor Performance
The objective of this study is to evaluate the implications of SMP formation for biofilm treatment. To do so, the extended steady-state model was applied to predict effluent concentrations...
Field Study of Specialized Bacteria for Nitrification
A full scale field study using specialized bacteria was conducted to determine its effectiveness in achieving nitrification while quantifying dosage rates. A side-by-side comparison of...
The Optimization of Nitrification and Denitrification in Plug-Flow Activated Sludge Systems Treating Municipal Wastestreams
Most conventional plug-flow activated sludge plants experience nitrification, particularly during higher temperature conditions. Under these circumstances, additional power is required...
Aerated Static Pile Composting of Wastewater Sludge: A Field Study in Longmont, Colorado
This is a report of experimental work at the Longmont wastewater plant at Colorado, on aerated static pile composting of wastewater sludge. 61% of the sludge mass used in compost piles...
Comprehensive Odor Control Programat East Bay Municipal Utility District (SD-1)
An odor control study was performed in a wastewater treatment plant in California to evaluate the interactive role of various factors tailored to site specific conditions. The scope of...
Radium Removal from Groundwater Using Sorption to Filter Sand
The use of this novel process to remove sufficient radium from drinking water by filter sand has been demonstrated. A major potential advantage of this process is that a minimal capital...
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