Hazardous Waste Containment Research Articles

Hazardous waste containment : Mitchell, J K In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15–19 September, 1985)P145–157. Publ London: Geological Society, 1986

Hazardous waste containment : Mitchell, J K In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15–19 September, 1985)P145–157. Publ London: Geological Society, 1986

Hazardous waste containment : Mitchell, J K In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15–19 September, 1985)P145–157. Publ London: Geological Society, 1986

Hazardous waste containment : Mitchell, J K In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15–19 September, 1985)P145–157. Publ London: Geological Society, 1986

Ultimate containment of residual hazardous waste in salt formations: Based on a paper presented at the U.S. EPA International Conference on New Frontiers for Hazardous Waste Management, Pittsburgh, PA, September 1985

Ultimate containment of residual hazardous waste in salt formations: Based on a paper presented at the U.S. EPA International Conference on New Frontiers for Hazardous Waste Management, Pittsburgh, PA, September 1985

Underground storage of hazardous waste

The use of underground space for the storage of hazardous waste is a little used option and is a viable candidate to supplement existing and developing technologies. The use of underground storage for hazardous waste has been successfully demonstrated for 13 years at the Herfa-Neurode Mine Facility in West Germany [1]. There is an ongoing effort to clean up dioxin contaminated soil in Missouri, one of the proposed solutions is the use of mined space for the long-term storage of this contaminated soil. The magnitude of the problem, criteria for siting a mine facility and a brief description of a proposed facility are outlined [2]. The proposed use of solution mined space in salt offers the potential for large volume bulk storage of hazardous waste. Several design and operational concepts are illustrated and discussed. Worldwide activities utilizing underground storage for hazardous waste containment, as described in the literature, are summarized and referenced.

Quality control of flexible membrane liners for waste disposal facilities

Flexible membrane liner systems have become required by law in many parts of the world for hazardous waste landfills and surface impoundments. Although a number of liner types can be considered in waste containment, there is a rapidly increasing trend toward the use of polymeric liners of the high-density polyethylene variety. With such emphasis and confidence given to flexible membrane liners, how can we be sure that the liner will provide maximum security for containment of hazardous wastes? Comprehensive quality control of the membranes provides the answer. A comprehensive quality control program is outlined in this paper in the light of recent developments in membrane liner selection and regulatory actions.

Quality assurance of geomembranes used as linings for hazardous waste containment

The lining of a facility for storing or disposing of hazardous materials or wastes on land must serve as an effective barrier to prevent potential contaminating species from migrating into the ground and the groundwater. The process from the design phase through the manufacture of a polymeric geomembrane to its installation and acceptance as a liner involves many steps that must be controlled in order to assure the ultimate effectiveness of the lining. In this paper, a program of quality assurance and quality control involved in the critical steps in the process of constructing a lined waste disposal facility from its design through the final acceptance is described. Included are design, geomembrane selection and compatibility testing, specification, raw materials, geomembrane manufacture, panel fabrication, shipment to field site, inspection, installation and performance testing of the lined facility. Emphasis is placed on factors and properties of geomembranes that relate to service performance and must be controlled. The properties include overall thickness, thickness of coatings above threads, composition control, crystallinity, carbon black content, ply adhesion and seam integrity and strength.

Hazardous waste containment

ABSTRACT Containment systems that have been developed to isolate wastes from the soil and water that surround them in the ground include compacted clay barriers, slurry trench cutoff walls, geomembrane walls, concrete diaphragm walls, sheetpile walls, grout curtains, hydraulic barriers, compacted clay liners, and geomembrane liners. The choice in any case is dictated by whether waste from an existing facility or spill or from a new disposal site is to be contained and by the geological setting. Properly compacted clays have properties that are well-suited for waste containment, as do flexible membrane liners. Compatibility between these materials and the waste must be considered in any case. Evidence is accumulating that the hydraulic conductivity of properly compacted clay is not significantly affected by exposure to most organic solvents and inorganic chemical wastes in dilute solution. Double liner designs that incorporate both compacted clay and flexible membrane liners as well as leachate collection systems have been proposed to satisfy the requirements of recent legislation in the USA. The higher temperatures and long times associated with nuclear waste isolation by deep burial pose special problems of barrier stability. It appears that smectite clay has adequate stability to be used for repository buffer and seal material.