Hydrocarbon Refining Waste Stabilization for Landfillsby Joseph P. Martin, Drexel Univ, Philadelphia, PA, USA,
Alan J. Felser, Drexel Univ, Philadelphia, PA, USA,
Edkward Van Keuren, Drexel Univ, Philadelphia, PA, USA,
Abstract: Mobile pollutants are generated in a landfill as a function of the waste properties and the response of the deposit to the in-situ stress, climate and biochemical conditions. Release of contaminants to the surrounding environment depends upon the ease of movement to the boundaries and the isolation provided by the external containment envelope. Many wastes can be stabilized to accomplish some combination of improved mechanical behavior, reduced contaminant mobility and restriction of fluid pathways inside the enclosure. This paper describes laboratory work in a project to stabilize petroleum refining wastes, acid hydrocarbon sludge and spent clay, with a pozzolanic lime-fly ash admixture. The waste clay is used as the solid aggregate of a cemented porous matrix and neutralized hydrocarbon droplets are entrapped within it. Hardened mixture properties were studied as were the effects of constituent proportioning on the fresh, soil like mixture workability.
Subject Headings: Landfills | Hydrocarbons | Petroleum refining | Water pollution | Waste disposal
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