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Title: In-situ chemical barrier and method of making

Abstract

A chemical barrier is formed by injecting a suspension of solid particles or colloids into the subsurface. First, a stable colloid suspension is made including a surfactant and a non-Newtonian fluid. This stable colloid suspension is characterized by colloid concentration, colloid size, colloid material, solution ionic strength, and chemical composition. A second step involves injecting the optimized stable colloid suspension at a sufficiently high flow rate to move the colloids through the subsurface sediment, but not at such a high rate so as to induce resuspending indigenous soil particles in the aquifer. While injecting the stable colloid suspension, a withdrawal well may be used to draw the injected colloids in a direction perpendicular to the flow path of a contaminant plume. The withdrawal well, may then be used as an injection well, and a third well, in line with the first two wells, may then be used as a withdrawal well, thereby increasing the length of the colloid barrier. This process would continue until emplacement of the colloid barrier is complete. 7 figs.

Inventors:
;
Issue Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321257
Patent Number(s):
5857810
Application Number:
PAN: 8-807,616
Assignee:
Battelle Memorial Inst., Richland, WA (United States)
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 12 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AQUIFERS; CONTAINMENT SYSTEMS; INSTALLATION; FLUID INJECTION; REMEDIAL ACTION; GROUND WATER; PLUMES; CONTAINMENT

Citation Formats

Cantrell, K J, and Kaplan, D I. In-situ chemical barrier and method of making. United States: N. p., 1999. Web.
Cantrell, K J, & Kaplan, D I. In-situ chemical barrier and method of making. United States.
Cantrell, K J, and Kaplan, D I. Tue . "In-situ chemical barrier and method of making". United States.
@article{osti_321257,
title = {In-situ chemical barrier and method of making},
author = {Cantrell, K J and Kaplan, D I},
abstractNote = {A chemical barrier is formed by injecting a suspension of solid particles or colloids into the subsurface. First, a stable colloid suspension is made including a surfactant and a non-Newtonian fluid. This stable colloid suspension is characterized by colloid concentration, colloid size, colloid material, solution ionic strength, and chemical composition. A second step involves injecting the optimized stable colloid suspension at a sufficiently high flow rate to move the colloids through the subsurface sediment, but not at such a high rate so as to induce resuspending indigenous soil particles in the aquifer. While injecting the stable colloid suspension, a withdrawal well may be used to draw the injected colloids in a direction perpendicular to the flow path of a contaminant plume. The withdrawal well, may then be used as an injection well, and a third well, in line with the first two wells, may then be used as a withdrawal well, thereby increasing the length of the colloid barrier. This process would continue until emplacement of the colloid barrier is complete. 7 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}