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Bioreactor landfill

About: Bioreactor landfill is a research topic. Over the lifetime, 1184 publications have been published within this topic receiving 28725 citations.


Papers
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Journal ArticleDOI
TL;DR: The results indicated that: (1) pre-sorting and baling of the waste did not hinder waste stabilization; and (2) the high organic and moisture contents resulted in an extremely strong leachates, particularly at the onset of biodegradation processes, which can affect the leachate treatment facility.

288 citations

Book
20 Sep 2001
TL;DR: In this paper, the authors present an overview of the use of double composite liners in the MSW Landfill and their application in the construction of the final cover of a MSW landfill.
Abstract: (NOTE: Each chapter concludes with Problems and References.) 1. Introduction. Need for Landfills. Principal Landfill Requirements. Landfill Components and Configuration. Landfill Envelope. Composite Liners. Benefits of Double Composite Liners. Liner Linkage Mechanisms. Scope and Organization of Book. 2. Landfill Siting and Site Investigation. Siting Considerations. Location Restrictions. Siting Process. Site Investigation. Borrow Source Investigation. Field Hydraulic Conductivity Tests. Material Laboratory Tests. 3. Compacted Clay Liners. Overview Compacted Clay Liners. Compaction and Permeability Considerations. Design of Compacted Clay Liners. Influence of Clods on Hydraulic Conductivity. Effect of Gravel Content on Hydraulic Conductivity. Effect of Freezing and Thawing on Hydraulic Conductivity. Summary Comments Regarding Compacted Clay Liners. 4. Geomembranes. Composition and Thickness of Geomembranes. Current Uses of Geomembranes in Landfills. Tensile Behavior of Geomembranes. Friction Behavior of Geomembranes. Tension Stresses Due to Unbalanced Friction Forces. Tension Stresses Due to Localized Subsidence. Runout and Anchor Trenches. Assessment of Leakage through Liners. Concluding Comments Regarding Geomembranes. 5. Geosynthetic Clay Liners. Types and Current Uses of Geosynthetic Clay Liners. Hydraulic Conductivity. Ability to Withstand Differential Settlement. Shear Strength. Differences between Geosynthetic Clay Liners and Compacted Clay Liners. Contaminant Transport through Geosynthetic Clay Liner and Compacted Clay Liner. Comparison of Mass Transport through a GCL and CCL. Recommendations for Use of Geosynthetic Clay Liners. Summarizing Comments Regarding Geosynthetic Clay Liners. 6. Engineering Properties of Municipal Solid Waste. Constituents of Municipal Solid Waste. Unit Weight of Municipal Solid Waste. Moisture Content of Municipal Solid Waste. Porosity of Municipal Solid Waste. Hydraulic Conductivity of Municipal Solid Waste. Field Capacity and Wilting Point of Municipal Solid Waste. Shear Strength of Municipal Solid Waste. Compressibility of Municipal Solid Waste. 7. Leachate Generation and Evaluation in MSW Landfills. MSW Leachate Characterization. Factors Affecting Leachate Quantity. Estimation of Leachate Production Rate in an Active Condition. Estimation of Leachate Production Rate in a Postclosure Condition. Hydrologic Evaluation of Landfill Performance (HELP) Model. 8. Liquid Drainage Layer. Profile of Leachate Drainage Layer. Soil Drainage and Filtration Layer. Geotextile Design for Filtration. Geonet Design for Leachate Drainage. Estimate of Maximum Liquid Head in a Drainage Layer. 9. Leachate Collection and Removal Systems. Subbase Grading. Leachate Collection Trenches. Selection of Leachate Collection Pipe. Deformation and Stability of Leachate Collection Pipe. Sump and Riser Pipes. Leachate Removal Pumps. 10. Gas Collection and Control Systems. Gas Generation. Gas Composition. Factors Affecting Gas Generation. Gas Generation Rate. Gas Migration. Types and Components of Gas Collection Systems. Gas Control and Treatment. Design of Gas Collection System. 11. Final Cover System. Components of Final Cover System. Alternative Landfill Cover. Field Study of Landfill Covers. Soil Erosion Control. Effects of Settlement and Subsidence. Differential Subsidence Case History. 12. Landfill Settlement. Mechanism of Solid Waste Settlement. Effect of Daily Cover. Landfill Settlement Rate. Estimation of Landfill Settlement. Effect of Waste Settlement on Landfill Capacity. Other Methods for Estimating Landfill Settlement. Estimation of Landfill Foundation Settlement. 13. Landfill Stability Analysis. Types of Landfill Failures. Factors Influencing Landfill Stability. Selection of Appropriate Properties. Veneer Slope Stability Analysis. Subsoil Foundation Failures. Waste Mass Failures. Concluding Remarks. 14. Vertical Landfill Expansions. Considerations Involved in Vertical Expansions. Liner Systems for Vertical Expansion. Settlement of Existing Landfill. Estimation of Differential Settlement Due to Waste Heterogeneity. Vertical Expansion over Unlined Landfills. Design Considerations for Landfill Structures. Geosynthetic Reinforcement Design for Vertical Expansions. Stability Analysis for Vertical Expansion. 15. Bioreactor Landfills. Introduction. Liquids Managements Strategies. Concepts of Waste Degradation. Leachate Recycling Methods. Bioreactor Landfill Issues and Concerns. Performance-to-Date. Summary Comments. 16. Construction of Compacted Clay Liners. Subgrade Preparation. Soil Materials for Compacted Soil Lines. Compaction Objectives and Choices. Initial Saturation Specifications. Clay Liner Compaction Considerations. Compaction Specifications. Leachate Collection Trench Construction. Protection of Compacted Soil. Field Measurement of Water Content and Dry Unit Weight. Construction Quality Assurance and Quality Control Issues. 17. Installation of Geosynthetic Materials. Material Delivery and Conformance Tests. Installation of Geomembranes. Installation of Geonets. Installation of Geotextiles. Installation of Geocompostes. Installation of Geosynthetic Clay Liners. 18. Postclosure Uses of MSW Landfills. Athletic and Recreational Facilities. Industrial Development. Aesthetics. Concluding Remarks. Appendix I. Help Model Input and Output-Active Condition. Appendix II. Help Model Input and Output-Postclosure Condition. Index.

282 citations

Journal ArticleDOI
TL;DR: Landfill bioreactor technology offers important advantages in the management and treatment of municipal solid waste, including accelerated waste stabilization rates, enhanced gas production, facilitated leachate management, volume reduction and minimized long-term liability.

271 citations

Journal ArticleDOI
TL;DR: In this article, the impact of landfill conditions such as construction, geometry, weather, temperature, moisture, pH, biodegradable matter and hydrogeological parameters on the generation of landfill gases and leachate is reviewed.
Abstract: The USA, China and India are the top three producers of municipal solid waste. The composition of solid wastes varies with income: low-to-middle-income population generates mainly organic wastes, whereas high-income population produces more waste paper, metals and glasses. Management of municipal solid waste includes recycling, incineration, waste-to-energy conversion, composting or landfilling. Landfilling for solid waste disposal is preferred in many municipalities globally. Landfill sites act as ecological reactors where wastes undergo physical, chemical and biological transformations. Hence, critical factors for sustainable landfilling are landfill liners, the thickness of the soil cover, leachate collection, landfill gas recovery and flaring facilities. Here, we review the impact of landfill conditions such as construction, geometry, weather, temperature, moisture, pH, biodegradable matter and hydrogeological parameters on the generation of landfill gases and leachate. Bioreactor landfills appear as the next-generation sanitary landfills, because they augment solid waste stabilization in a time-efficient manner, as a result of controlled recirculation of leachate and gases. We discuss volume reduction, resource recovery, valorization of dumped wastes, environmental protection and site reclamation toward urban development. We present the classifications and engineered iterations of landfills, operations, mechanisms and mining.

271 citations

Journal ArticleDOI
TL;DR: Analyzing bioreactor and recirculation landfills in North America indicated that more detailed data collection over longer time periods is needed to draw definitive conclusions regarding the effects of biore Actor and Recirculation operations.

265 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202321
202249
202123
202020
201921
201834