Biodegradation of 2,4-Dinitrotoluene in a Two Stage System
An anaerobic/anoxic fluidized-bed GAC bioreactor in series with an activated sludge reactor was used to treat 2,4-Dinitrotoluene (2,4-DNT). A simulated high strength wastewater solution...
The Sensitized Photocatalysis of a Mixed Reactant System of 4-Chlorophenol and 4-Nitrophenol
Sensitized photocatalysis has been demonstrated with colored pollutants such as nitrophenols. With visible light excitation of an adsorbed nitrophenolic compound, charge injection into...
Innovative Treatment of Soil Contamination: Radiolytic Destruction of Dioxin and Co-Contaminants by Cobalt-60
Recent work in our laboratory has demonstrated that gamma radiolysis is a feasible method by which 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) can be converted to products of negligible...
Predicting the Impact from Significant Storm Events on a Hazardous Waste Site
The Stringfellow Hazardous Waste Site is a former Class I industrial waste disposal facility located near the community of Glen Avon in southern California. In response to community concerns...
Damage to Highway Infrastructure 1993 Mississippi River Basin Flooding
A study has been initiated to investigate the basin-wide impact of the 1993 Mississippi River Basin flooding on damage to the highway infrastructure. The study involves site investigations...
A model to describe the fate of agricultural pollutants
The distributed parameter hydrological model CEQUEAU is coupled to nitrogen and pesticide sub-models to study agricultural non-point pollution at the watershed level. This developing tool...
Interfacing GIS and Water Quality Models for Agricultural Areas
Agricultural activities significantly impact water quality, including increases in stream sediment, nutrients, pesticides, and salt concentrations from runoff. South Florida is unique...
Groundwater Remediation at a Superfund Site
Soil and groundwater contamination at the Montana Post & Pole site in Butte, Montana, one of the nation's oldest Superfund sites, has developed into one of the most significant...
An Improved Design of Fishways Under High Variation of Headwater
For the purpose of mitigating environmental impact, it is necessary to build fish passing facilities for fish migration when a dam is constructed on a river. But when the headwater variation...
The Rest of the Best
Nominations for this year's Outstanding Civil Engineering Achievement Award ranged from a channel built to control flood waters to the construction of a wastewater pollution...
High Level Radioactive Waste Management 1994
The proceedings of the fifth International Conference on High Level Radioactive Waste Management, held on May 22-26, 1994, Las Vegas, Nevada, continues a concerted effort to transfer technology...
Critical Issues in Water and Wastewater Treatment
This proceedings,
Safety at the Site
The engineer should not be responsible for safety at the construction site. Most standard contract documents allocate this responsibility in construction means, methods and sequences to...
Deep Dig, Tight Squeeze
Since it opened in 1928, the North Station/Boston Garden Complex has secured a firm place in local history. Boston Garden, home of the Bruins hockey and Celtics basketball teams, has been...
Advances in Cement and Concrete
This proceedings,
GPS Goes Real Time
This paper discusses the feasibility of Trimble Navigation's Site Surveyor System using Real-Time Kinematic (RTK) technology for conducting cadastral surveys. The use of RTK...
The Engineer As Preservationist
Engineers in the U.S. have been involved in historic preservation at least since 1966, the year ASCE's Committee on the History and Heritage of Civil Engineering designated...
The Art of Infrastructure
Phoenix' capital improvement plan is subtitled Our Share Environment. It requires that one percent of the capital budget go toward artistic input on all infrastructure projects:...
Constructing Around Contamination
When soil and ground water contamination are found at a construction site, completing the project on time and within budget is always a challenge. Typical problems include constraints...
Escaping the Niche
In today's business climate of increasing competition and shrinking markets, your company must get the most out of its marketing energy and budget. Finding new clients is...
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