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◊ Air Sparging
◊ Bioreactor Landfills ◊ Bioremediation of Chlorinated Solvents ◊ Bioventing and Biosparging ◊ Electrokinetics: Electric Current Technologies ◊ Fracturing ◊ Ground-Water Circulating Wells ◊ In Situ Flushing ◊ In Situ Oxidation ◊ Multi-Phase Extraction ◊ Natural Attenuation ◊ Permeable Reactive Barriers ◊ Phytoremediation ◊ Remediation Optimization ◊ Soil Vapor Extraction ◊ Soil Washing ◊ Solvent Extraction ◊ Thermal Treatment: Ex Situ ◊ Thermal Treatment: In Situ
Guidance
First-Order Kinetic Gas Generation Model Parameters for Wet Landfills The objective of this report is to investigate landfill gas collection from wet cells and estimate first-order gas-generation model parameters. The report contains the results of a review of the literature regarding landfill gas generation and modeling, followed by case studies of gas collection from wet landfills and determination of parameters through statistical comparison of predicted and actual gas collection. Landfill Bioreactor Design and Operation This manual describes the advantages of bioreactor technology-accelerated waste stabilization rates, enhanced gas production, facilitated leachate management, volume reduction, and minimized long-term liability. It brings together information that will help creators of future bioreactor systems benefit from the lessons gained from previous work. Case studies describe design and operation issues and address the potential of landfill mining as a method to recover treated waste materials and to reuse bioreactor cells. Drawings, tables, and references aid the reader in making difficult decisions about waste management. 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. The authors 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. Monitoring Approaches for Landfill Bioreactors To provide a basis for consistent data collection for future decision-making in support of RD&D requirements, this report outlines an approach for bioreactor landfill monitoring. The document suggests technical guidance only, and is not intended to be used for regulatory purposes. Seminar Publication: Landfill Bioreactor Design and Operation, March 23-24, 1995, Wilmington, Delaware These proceedings are from a conference on the subject of municipal waste landfill (MSWLF) bioreactors. Biologically active landfill operation represents a fundamentally different operational technique for MSWLFs because it uses the distribution of moisture in the form of landfill leachate to accelerate naturally occuring decomposition process to rapidly stabilize the waste mass. The technique also has the benefits of enhanced control of landfill gas, optimization of landfill volume, and, most importantly, the reduction of long-term environmental risk. The seminar was held to determine the level of knowledge about this operational technique. Solid Waste Disposal Facility Criteria. 40 CFR Parts 257 and 258 The Solid Waste Manager's Guide to the Bioreactor Landfill This 55-page guide presents up-to-date information that can be used by solid waste managers to address the management, as well as technical issues, associated with the implementation of this new disposal technology. Topics include bioreactor landfill technology status report; water supply for the bioreactor landfill; bioreactor landfill benefits, drawbacks, and risks; economics and financing; regulations and permitting; and addressing negative perceptions. Developed as a collective research effort through SWANA's Applied Research Foundation, this guide is the first of its kind to address the management-related issues associated with this emerging disposal option, and it distinguishes between bioreactor landfill and leachate recirculation landfills. State of the Practice for Bioreactor Landfills: Workshop on Bioreactor Landfills (Arlington, Virginia September 6-7, 2000) The purpose of the EPA Workshop on Landfill Bioreactors was to provide a forum to EPA, state and local governments, solid waste industry, and academic research representatives to exchange information and ideas on bioreactor landfills. The workshop addressed the state of the practice of bioreactor landfill design, operation, and maintenance; case studies of bioreactor landfill use; long-term monitoring needs; technical concerns; economic viability; and additional research needs.
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