Accession Number:

ADA411005

Title:

Technical Feasibility of Centrifugal Techniques for Evaluating Hazardous Waste Migration

Descriptive Note:

Final rept. May 1985-Mar 1987

Corporate Author:

FLORIDA UNIV GAINESVILLE DEPT OF CIVILENGINEERING

Report Date:

1987-12-01

Pagination or Media Count:

170.0

Abstract:

This study was designed and executed to assess the technical feasibility of using centrifugal techniques to predict the transport characteristics of hazardous waste through soil. Advection is generally the major mechanism of contaminant migration from a waste source. For soluble contaminants, advection occurs within the aqueous phase. For immiscible fluid contaminants, such as the jet fuel JP-4, migration rates are often independent of the rates of water movement. Advection in saturated and unsaturated soils can be predicted from physical models or from measurements of the hydraulic conductivity in conjunction with knowledge of existing hydraulic gradients. A flexible wall permeameter was designed and utilized for determining saturated hydraulic conductivity of soil samples in the centrifuge and on the laboratory bench. Fundamental relationships of hydrodynamic pressure distribution and fluid kinematics within a soil volume undergoing radial acceleration were derived and verified during the study. Reagent grade decane was utilized as a surrogate for JP-4 jet fuel.

Subject Categories:

  • Thermodynamics
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE