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Leachate Flow from an Experimental Fly Ash Landfill

by Carol Roberson, Atlantic Environmental services Inc, Colchester, United States,
John A. Ripp, Atlantic Environmental services Inc, Colchester, United States,
James F. Villaume, Atlantic Environmental services Inc, Colchester, United States,



Document Type: Proceeding Paper

Part of: Energy in the 90's

Abstract:

Combustion of coal in large-scale utility boilers produces an ash by-product which is often stored in open landfills. An experimental fly ash landfill was constructed by Pennsylvania Power and Light Company (PP&L) in 1984 to study leachate production in relationship to both the hydraulic properties of the ash and the yearly hydrologic cycle. The results of the studies performed at the test cell indicate the leachate did not flow at the test cell during the first 11 months following construction; leachate normally flows only during the winter and spring months when the ash pile is relatively wet; leachate will occasionally also flow following very large and intense storms encountered during the summer months; and preferential flow may occur in the pile, despite the fact that it was constructed of fairly uniform material.

Subject Headings: Fly ash | Leachates | Landfills | Pile tests | Mine wastes | Hydrologic properties | Hydraulic properties | Pennsylvania | United States

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