The storage and disposal of hazardous liquids and solid wastes on the land are increasing the potential for pollution of surface and ground waters by these wastes or their leachates. Intercepting and controlling the seepage of such fluids by the use of impervious barriers offers a promising means of reducing or eliminating such pollution. This engineering research project was undertaken to assess the relative effectiveness and durability of a wide variety of liner materials when exposed to hazardous wastes. The materials under study include a native soil, modified bentonite a soil cement, a hydraulic asphalt concrete, an asphaltic membrane, and 8 polymeric membranes based upon polyvinyl chloride, chlorinated polyethylene, chlorosulfonated polyethylene, ethylene propylene rubber, neoprene, butyl rubber, an elasticized polyolefin, and a thermoplastic polyester elastomer, respectively. In this study the liner materials are exposed to such hazardous wastes as a strong acid, a strong base, an oil refinery tank bottom waste, a blend of lead wastes from gasoline production, a saturated and unsaturated hydrocarbon oil waste, and a pesticide. The experimental approach and methodology followed are described and results of preliminary tests used in the selection of materials for extensive testing are presented.

First interim report. "June 1977." Contract 68-03-2173. "Matrecon, Inc" "Project Officer Robert Landreth." NTIS PB 271 013. Bibliography : p. 59.