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Simplified estimation technique for organic contaminant transport in ground water

Journal Article:

Abstract

The analytical solution for one-dimensional dispersive-advective transport of a single solute in a saturated soil accompanied by adsorption onto soil surfaces and first-order reaction rate kinetics for degradation can be used to evaluate the suitability of potential sites for burial of organic chemicals. The technique can be used to the greatest advantage with organic chemicals that are present in ground waters in small amounts. The steady-state solution provides a rapid method for chemical landfill site evaluation because it contains the important variables that describe interactions between hydrodynamics and chemical transformation. With this solution, solute concentration, at a specified distance from the landfill site, is a function of the initial concentration and two dimensionless groups. In the first group, the relative weights of advective and dispersive variables are compared, and in the second group the relative weights of hydrodynamic and degradation variables are compared. The ratio of hydrodynamic to degradation variables can be rearranged and written as (a/sub L lambda)/(q/epsilon), where a/sub L/ is the dispersivity of the soil, lambda is the reaction rate constant, q is ground water flow velocity, and epsilon is the soil porosity. When this term has a value less than 0.01, the degradation process is occurring  More>>
Publication Date:
May 01, 1984
Product Type:
Journal Article
Reference Number:
EDB-85-024687
Resource Relation:
Journal Name: J. Hazard. Mater.; (Netherlands); Journal Volume: 8:4
Subject:
54 ENVIRONMENTAL SCIENCES; GROUND WATER; CONTAMINATION; ORGANIC COMPOUNDS; ENVIRONMENTAL TRANSPORT; MATHEMATICAL MODELS; SOILS; HYDROGEN COMPOUNDS; MASS TRANSFER; OXYGEN COMPOUNDS; WATER; 510200* - Environment, Terrestrial- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
6217960
Research Organizations:
National Inst. of Environmental Health Sciences, Research Triangle Park, NC
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JHMAD
Submitting Site:
HEDB
Size:
Pages: 331-339
Announcement Date:

Journal Article:

Citation Formats

Piver, W T, and Lindstrom, F T. Simplified estimation technique for organic contaminant transport in ground water. Netherlands: N. p., 1984. Web.
Piver, W T, & Lindstrom, F T. Simplified estimation technique for organic contaminant transport in ground water. Netherlands.
Piver, W T, and Lindstrom, F T. 1984. "Simplified estimation technique for organic contaminant transport in ground water." Netherlands.
@misc{etde_6217960,
title = {Simplified estimation technique for organic contaminant transport in ground water}
author = {Piver, W T, and Lindstrom, F T}
abstractNote = {The analytical solution for one-dimensional dispersive-advective transport of a single solute in a saturated soil accompanied by adsorption onto soil surfaces and first-order reaction rate kinetics for degradation can be used to evaluate the suitability of potential sites for burial of organic chemicals. The technique can be used to the greatest advantage with organic chemicals that are present in ground waters in small amounts. The steady-state solution provides a rapid method for chemical landfill site evaluation because it contains the important variables that describe interactions between hydrodynamics and chemical transformation. With this solution, solute concentration, at a specified distance from the landfill site, is a function of the initial concentration and two dimensionless groups. In the first group, the relative weights of advective and dispersive variables are compared, and in the second group the relative weights of hydrodynamic and degradation variables are compared. The ratio of hydrodynamic to degradation variables can be rearranged and written as (a/sub L lambda)/(q/epsilon), where a/sub L/ is the dispersivity of the soil, lambda is the reaction rate constant, q is ground water flow velocity, and epsilon is the soil porosity. When this term has a value less than 0.01, the degradation process is occurring at such a slow rate relative to the hydrodynamics that it can be neglected. Under these conditions the site is unsuitable because the chemicals are unreactive, and concentrations in ground waters will change very slowly with distance away from the landfill site.}
journal = {J. Hazard. Mater.; (Netherlands)}
volume = {8:4}
journal type = {AC}
place = {Netherlands}
year = {1984}
month = {May}
}