A Study of the Potential for Groundwater Contamination by Alcohol Blended Gasolines

by Robert J. Graves, Bur of Engineering Research, University, AL, USA,
T. A. Carlton, Bur of Engineering Research, University, AL, USA,
Marvin D. McKinley, Bur of Engineering Research, University, AL, USA,
Royce B. Luke, Bur of Engineering Research, University, AL, USA,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract: This paper describes the increased solubility of gasoline-hydrocarbons in groundwater when alcohols are used as octane enhancement additives and the effects of 'gasohol versus gasoline' contaminated groundwater on typical Southeastern United States clay-soils. This paper also introduces a new automated instrumental system for studying hazardous chemical or contaminated groundwater interactions with geologic materials. This system has computer-controlled real-time on-line monitoring capabilities for permeant flow-rates, permeameter cell pressure-drop and contaminant breakthrough. The system can operate in a constant hydraulic gradient or constant permeant-flow-rate mode. The system can also determine when steady-state base-line hydraulic conductivity of porous media has been achieved and automatically switch permeants for chemical interaction studies.

Subject Headings: Groundwater pollution | Gasoline | Water resources | Environmental issues | Automation | Hazardous materials | North America | United States

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