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BIOREACTOR LANDFILL DESIGN
Citation:
TOLAYMAT, T. M. AND T. TOWNSEND. BIOREACTOR LANDFILL DESIGN. Presented at EPA Region 5 Bioreactor Landfill Workshop, Chicago, IL, September 27, 2005.
Impact/Purpose:
to present information
Description:
Modern landfill design entails many elements including foundations, liner systems, leachate collection systems, stormwater control systems, slope stability considerations, leachate management systems, gas extraction systems, and capping and closure. The use of bioreactor technology at landfils can impact all of these phases of design. In addition, a design must be provided for the addition of liquids (and perhaps air) into the landfill. The typical approach for moisture addition is to add enough liquid to bring the landfilled waste to field capacity. Field capacity is the moisture content that the waste can "hold" under the influence of gravity. The rate of liquid addition into landfills depends on several issues including regulatory requirements, the ability of the landfill and the devices to accept the liquids, limitations on pressure buildup, available liquids supply, operational timeline and minimizing seeps.