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Thermally Enhanced Bioremediation of a Gasoline-Contaminated Aquifer Using Toluene Oxidizing Bacteria
The combined application of steam injection and vacuum extraction has proved to be very effective for the in situ remediation of a gasoline contaminated aquifer. It is expected that the...

Achieving Adequate BMP's for Stormwater Quality Management
There is considerable controversy about the technical appropriateness and the cost-effectiveness of requiring cities to control contaminants in urban stormwater discharges to meet state...

Miami International Airport Stormwater NPDES Plan
Miami International Airport (MIA) is endeavoring to essentially double its traffic volume by the turn of the century. This is a great challenge since the site is already highly developed....

In Situ Treatment of VOCs by Recirculation Technologies
Confronted with contaminated land from the world wars and the postwar industrialization period, German researchers and practicing professionals have worked to develop processes for effective...

Arsenic Removal Via Softening
The removal of arsenic during softening was investigated using synthetic solutions. Arsenic removal is facilitated by formation of a variety of solids including Mg(OH)₂,...

Development of a Model for the ABF/AS Process
A modelling approach has been established for the activated biofiltration/activated sludge (ABF/AS) process. This approach indicates that ABF/AS systems can be considered as a variation...

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...

NCASI Experiment Related to Validation of Equilibrium Partitioning (EP) Theory
A review of NCASI's technical studies related to evaluating equilibrium partitioning (EP) theory as it is commonly applied in regulatory setting is presented. Although interim results...

Environmental Effects of Flooding at a USCG Base
In July of 1993, the U.S. Coast Guard (USCG) Base St. Louis facility was flooded. As the flood waters receded and cleanup efforts were initiated, a number of environmental issues had to...

Geographical Information Systems and Remote Sensing: a possible support in 2D modelling of flood propagation
This paper examines some specific aspects regarding the implementation of a 2D mathematical model of flood propagation, namely that of input and output data management. The problems connected...

A Computerized Open Channel Flow Measurement Device
This is a technical information paper with the intention of introducing a new product. It is not the intent of the author to use this as a marketing tool. However, it is the intent to...

Demonstration Project for Scour Instrumentation
A Federal Highway Administration (FHWA) Demonstration Project was developed to facilitate technology transfer of instrumentation related research to the highway industry. The objective...

Velocity Measurements by the One-Orange Method
Application of the most sophisticated instrumentation - so called state-of-the-art equipment - is not always necessary nor even desirable for measurement of mean velocities in verticals,...

Bridge Scour Instrumentation
This paper presents a brief status report of research funded by the National Cooperative Highway Research Program (NCHRP Project 21-3, Instrumentation for Measuring Scour at Bridge Piers...

Reservoir Operation by the Use of an Expert System
Most reservoirs, designed for the purpose of flood control, face operational problems during periods of drought. This study uses five indicators, streamflow, precipitation, temperature,...

Farakka Barrage - It's Impacts and Possible Mitigation
The paper discusses the impacts and possible implications of the Farraka Barrage Project across the Ganges River on different sectors in Bangladesh including hydrology and river morphology,...

Integrated Planning for International River Basin
The integrated development of the Vardar/Axios Basin includes a system of projects scheduled to meet the needs and aspirations of Yugoslavia (in particular, the former Socialist Republic...

Transport Process of Surface Liquid Spills
A mathematical model simulating the scenarios of surface liquid spills is presented in this paper. This model describes the advance front and recession curves of surface spills based on...

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...

Benefits of Hazard Mitigation Planning to Reduce Shoreline Impacts Due to Great Lakes Water Level Management Fluctuations and Severe Storms
Recent experience with flood hazard mitigation planning that encompassed aspects of pre-disaster preparedness and recovery operations have proven to be an effective tool in geographic...

 

 

 

 

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