1st Edition

Landfill Bioreactor Design & Operation

    Using biotechnology to help control landfill processes can mitigate costs, shorten the time needed to process solid waste, and ease the typical ecological damage to the land being used. This first-of-its-kind book provides regulators, designers, landfill owners, and operators with information that supports the utility of landfill bioreactors and provides design and operating criteria essential for the successful application of this technology. It pulls together laboratory, pilot, and full-scale experiences into one concise guide to designing and running municipal landfills as bioreactors.
    Landfill Bioreactor Design and Operation covers the history and background of landfill technology, research studies of actual bioreactor landfills, expected leachate and gas yields, specific design criteria, operation guidelines, and reuse of landfill sites to avoid having to establish new sites. For anyone looking for an alternative to large, wasteful landfill sites, this book provides a practical alternative to the problem.

    Scope and Objectives
    The Evolution of Landfills for Waste Management
    Landfills as Bioreactors
    Regulatory Status
    Organization of the Book
    Modern Landfill Fundamentals
    Overview of Modern Sanitary Landfills
    Landfill Containment Systems
    Collection and Control of Leachate
    Leachate Collection and Storage
    Leachate and Gas Management at MSW Landfills
    Landfill Operation Strategies
    Landfill Bioreactor Studies
    Laboratory Scale Studies
    Pilot-Scale Bioreactor Studies
    Full-Scale Landfill Bioreactor Studies
    Full-Scale Experiences with Bioreactor Landfills - Case Studies
    Southwest Landfill, Alachua County, Florida
    Central Facility Landfill, Worcester County, Maryland
    Winfield Landfill, Columbia County, Florida
    Pecan Row Landfill, Lowndes County, Georgia
    Lower Mount Washington Valley Secure Landfill, Conway, New Hamshire
    Coastal Regional Solid Waste Management Authority Landfill, Craven County, North Carolina
    Lemons Landfill, Stoddard County, Missouri
    Mill Seat Landfill, Monroe County, New York
    Yolo County Landfill, California
    Additional Full-Scale Efforts
    The Hydrodynamics of Leachate Recirculating Landfills
    Leachate Generation
    Moisture Movement
    Unsaturated Leachate Flow
    Mathematical Modeling of Leachate Recirculation
    Leachate Recirculation Field Testing
    The Impact of Leachate Recirculation of Leachate and Gas Characteristics
    Leachate Characteristics of Recirculating Landfills
    Leachate Treatment Implications
    Leachate Quantities
    Gas Production
    Landfill Bioreactor Design
    Liner/Leachate Collection System
    Leachate Storage
    Leachate Reintroduction Systems
    Leachate Recirculation System Design
    Final and Intermediate Caps
    Gas Collection
    Cell Construction
    Construction Costs
    Landfill Bioreactor Operation
    Waste Characterization
    Oxidation Reduction Conditions
    Moisture Content
    Recirculation Strategies
    Effects of Waste Placement Rate
    Use of Old Cells
    Bioreactor Augmentation
    Daily and Intermediate Covers
    When is the Waste Stable?
    Materials Recovery and Reuse from Bioreactor Landfills
    Landfill Treatment and Reclamation Strategies
    Mass Balance Design for Landfill Reclamation
    Methods of Landfill Reclamation
    Previous Experience with Landfill Reclamation
    Use of Reclaimed Materials
    Future Directions for Bioreactor Landfills


    Timothy G. Townsend