Waste Management

Download Sustainable Practices for Landfill Design and Operation by Timothy G. Townsend, Jon Powell, Pradeep Jain, Qiyong Xu, PDF

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By Timothy G. Townsend, Jon Powell, Pradeep Jain, Qiyong Xu, Thabet Tolaymat, Debra Reinhart

Solid waste administration is an international quandary, and landfilling is still the principal administration process in such a lot parts of the area. This ebook offers a accomplished view of cutting-edge easy methods to deal with landfills extra sustainably, drawing upon greater than 20 years of study, layout, and operational reviews at working websites the world over. Sustainable landfills enforce one or a number of applied sciences to regulate and improve the degradation of waste material to achieve a large number of capability advantages in the course of or almost immediately after the landfill’s working part. This publication provides targeted methods within the improvement, layout, operation, and tracking of sustainable landfills. Case stories showcasing the advantages and demanding situations of sustainable landfill applied sciences also are supplied to provide the reader extra context. The purpose of the booklet is to function a reference advisor for regulatory team of workers, a realistic device for designers and engineers to construct on for site-specific functions of sustainable landfill applied sciences, and a finished source for researchers who're carrying on with to discover new and higher how one can extra sustainably deal with waste materials.

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Once waste is landfilled, the void spaces within the waste mostly contain air, and thus the initial phase of waste decomposition is often described as aerobic. Placement of daily cover, additional waste, and waste compaction may limit oxygen transfer, resulting in the termination of aerobic decomposition within a short period of time. For this reason, the portion of waste decomposed under aerobic conditions is relatively small with respect to the entire landfill stabilization process. The major gas components observed in the aerobic phase are oxygen, nitrogen (entrapped from the atmosphere) and carbon dioxide generated as a byproduct of aerobic decomposition.

The intent of this chapter is to introduce the planning elements required when pursuing sustainable landfill practices. A discussion of these considerations provides a good introduction to the detailed technical presentations in later chapters. In addition to discussing planning objectives, typical regulatory requirements, and design and operational issues, upfront considerations regarding the long-term fate of facilities integrating sustainable landfill technologies and economic considerations are discussed.

B) Geomembrane liner panels. (c) Thermal fusion welding of geomembrane panels. (d) Thermal extrusion welding of geomembrane (Photo courtesy of Jones Edmunds) Geosynthetic liner products, known as geomembranes, are manufactured from several different types of plastic polymers, the most common one in use for landfill bottom liners being high-density polyethylene (HDPE). 6b) together through welding; HDPE geomembranes are attached using thermal welding. 6c). 2 Landfill Components Fig. 6d). Rigorous testing of liner materials and seams must be included as part of geomembrane liner construction.

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