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Composite liners protect ground water

Journal Article:

Abstract

For about 10 years flexible membrane liners (FMLs) have been used as bottom liners to protect ground water in the vicinity of waste sites. But a permeation (absorption, diffusion, desorption) of chemical liquids, e.g. hydrocarbons (HC) and chlorinated hydrocarbons (CHC) will generally occur. The rates of permeation depend, first of all, on the chemical affinity, the thickness of the FML and the boundary conditions. In order to improve the barrier quality of polymeric membranes, it is necessary to study the transport processes of HC and CHC through the polymeric materials. Long-term tests with composite liners are additionally carried out. These are liners which consist of two components, flexible membrane and natural soil liner (recompacted clay, bentonite-soil mixtures). Laboratory studies show that with composite liners a perfect sealing of waste sites may be possible. Test methods for measuring permeation rates of HC and CHC through polymeric membranes and methods of testing for the development of composite liner systems are presented. (orig.)
Publication Date:
Dec 01, 1987
Product Type:
Journal Article
Reference Number:
DE-88-006691; EDB-88-106401
Resource Relation:
Journal Name: GIT Fachz. Lab.; (Germany, Federal Republic of); Journal Volume: 31:12
Subject:
54 ENVIRONMENTAL SCIENCES; HYDROCARBONS; PERMEABILITY; SANITARY LANDFILLS; ORGANIC CHLORINE COMPOUNDS; LINERS; ADSORPTION; COMPOSITE MATERIALS; DESORPTION; MEMBRANES; POLYMERS; SEALING MATERIALS; WATERPROOFING; MANAGEMENT; MATERIALS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; SORPTION; WASTE DISPOSAL; WASTE MANAGEMENT; 510500* - Environment, Terrestrial- Site Resource & Use Studies- (-1989)
OSTI ID:
5089490
Research Organizations:
Bundesanstalt fuer Materialforschung und -pruefung, Berlin (Germany, F.R.)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: GITEA
Submitting Site:
DE
Size:
Pages: 1143-1148
Announcement Date:

Journal Article:

Citation Formats

Tatzky, R, and August, H. Composite liners protect ground water. Germany: N. p., 1987. Web.
Tatzky, R, & August, H. Composite liners protect ground water. Germany.
Tatzky, R, and August, H. 1987. "Composite liners protect ground water." Germany.
@misc{etde_5089490,
title = {Composite liners protect ground water}
author = {Tatzky, R, and August, H}
abstractNote = {For about 10 years flexible membrane liners (FMLs) have been used as bottom liners to protect ground water in the vicinity of waste sites. But a permeation (absorption, diffusion, desorption) of chemical liquids, e.g. hydrocarbons (HC) and chlorinated hydrocarbons (CHC) will generally occur. The rates of permeation depend, first of all, on the chemical affinity, the thickness of the FML and the boundary conditions. In order to improve the barrier quality of polymeric membranes, it is necessary to study the transport processes of HC and CHC through the polymeric materials. Long-term tests with composite liners are additionally carried out. These are liners which consist of two components, flexible membrane and natural soil liner (recompacted clay, bentonite-soil mixtures). Laboratory studies show that with composite liners a perfect sealing of waste sites may be possible. Test methods for measuring permeation rates of HC and CHC through polymeric membranes and methods of testing for the development of composite liner systems are presented. (orig.)}
journal = {GIT Fachz. Lab.; (Germany, Federal Republic of)}
volume = {31:12}
journal type = {AC}
place = {Germany}
year = {1987}
month = {Dec}
}