Site Constraints Complicate a Bulkhead Replacement: It Takes a Team to Overcome the Challenges
North American Aggregates (NAA), a leading supplier of aggregates in the New York area, recently constructed a new processing facility in Perth Amboy, NJ. One of the final components of the new facility...
Perfluorinated Chemical Contamination in Drinking Water Raises Concerns in Congress
Shortly after a House subcommittee examined the issue of perfluorinated chemicals in drinking water, a group of Michigan representatives introduced legislation intended to encourage federal agencies to...
Becoming Greener with Green Sand: An Iron Castings Company Devises an Environmentally Friendly Liner System Reusing Foundry Byproduct
Metalcasting is one of the oldest methods of recycling�humans have a few millennia worth of experience with the technique�but today's industry still battles public preconceptions...
Design of Municipal Wastewater Treatment Plants
Fully revised and updated, this three-volume set from the Water Environment Federation and the Environmental and Water Resources Institute of the American Society of Civil Engineers presents...
Chemical Grouting
Chemical grouting is used in underground construction primarily on soft-ground shafts and tunnels in an effort to control cohesionless or running ground conditions by modifying the soil....
Remediation System Optimization with Alternatives
This work applies the enhanced multi-objective robust genetic algorithm (EMRGA) (Beckford and Chan Hilton, 2004) to Fort Ord's Site OU2 for optimal groundwater remediation under uncertainty....
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...
Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants
Biological Nutrient Removal (BNR) Operation Wastewater Treatment Plants instructs readers in the theory, equipment, and practical techniques needed to optimize BNR in varied environments,...
Nanotechnology Takes Roots
Nanoscale particles of zero-valent iron with a trace of noble metal catalyst are punching well above their weight in the area of environmental remediation. Their ability to destroy a wide...
Fate of TCE in Phytoremediation Systems
The phytoremediation of trichloroethylene (TCE) and other volatile organic compounds (VOCs) has been developed from a mere concept to full applications over the past decade. However, the...
Nonionic Organic Solute Sorption to Two Organobentonites as a Function of Organic-Carbon Content
Sorption of three nonionic organic solutes (benzene, trichloroethene, and 1,2-dichlorobenzene) to hexadecyltrimethylammonium-bentonite (HDTMA-bentonite) and benzyltriethylammonium-bentonite...
Thermal Cyclone Washing for Remediation of Petroleum Contaminated Soils
Thermal Cyclone Washing (TCW) is a soil remediation technology developed and tested at the University of Alabama in Huntsville. TCW is a combination of thermal, chemical, and physical...
Characterization of Anaerobic Microbial Consortium Response to Thiol-Reactive Compounds
The activity of anaerobes in wastewater treatment processes can be limited when a toxicant enters the system. For certain toxicants, along with the decrease in metabolic activity, an efflux...
Countering Chemical and Biological Terrorism
Prior to the terrorist attacks of September 11, building protection related to terrorism primarily focused on the threat of bombs detonated inside vechicles. However the September 2001...
Multifaceted Trenchless Rehabilitation at the Middletown, Ohio WWTP
This paper describes the multiple trenchless technologies that were evaluated and the ones that were applied to the rehabilitation of a 78la diameter corrugated metal influent line and...
National Water Quality Assessment: Moving from Measurement to Understanding
The USGS National Water Quality Assessment (NAWQA) program began in 1991. The objectives of the program were to characterize the quality of the Nations ground and surface water, assess...
New Concepts in Structural Strength Assessment for Large Buildings in Fire
This paper presents theoretical descriptions of the key phenomena that govern the behaviour of composite framed structures in fire. These descriptions have been developed in parallel with...
A Whole New Experience
Experience Music Project co-founders Paul Allen and Jody Allen Patton wanted a new museum/interactive music facility for Seattle that reflected the creativity of Jimi Hendrix. In architect...
Wetlands Treat Mine Runoff
Engineers were asked to design a treatment system for the severely acidic drainage from the Mike Horse and Anaconda metals mines in Montana. Challenges included the mountainous terrain,...
Perpetual Pilots
Because testing new processes, treatment chemicals, and operational modifications is difficult in full-scale water treatment facilities, many utilities are installing permanent pilot plants....
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