Solid Waste Management of Coal Conversion Residuals from a Commercial-size Facility

Solid Waste Management of Coal Conversion Residuals from a Commercial-size Facility
Author:
Publisher:
Total Pages:
Release: 1980
Genre:
ISBN:

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Major residuals generated by the conversion process and its auxiliary operations include: (a) coal preparation wastes; (b) gasifier ash; (c) liquefaction solids-char; (d) tail gas or flue gas desulfurization sludge; (e) boiler flyash and bottom ash; (f) raw water treatment sludge, and; (g) biosludges from process wastewater treatment. Recovered sulfur may also require disposal management. Potential environmental and health impacts from each of the residues are described on the basis of characterization of the waste in the perspective of water quality degradation. Coal gasification and liquefaction systems are described in great detail with respect to their associated residuals. Management options are listed with the conclusion that land disposal of the major residual streams is the only viable choice. On-site versus off-site disposal is analyzed with the selection of on-site operations to reduce political, social and institutional pressures, and to optimize the costs of the system. Mechanisms for prevention of leachate generation are described, and various disposal site designs are outlined. It is concluded that co-disposal feasibility of some waste streams must be established in order to make the most preferred solid waste management system feasible. Capacity requirements for the disposal operation were calculated for a 50,000 bbl/day coal liquefaction plant or 250 million SCF/day gasification operation.

Solid Waste Management of Coal Conversion Residuals from a Commercial-size Facility

Solid Waste Management of Coal Conversion Residuals from a Commercial-size Facility
Author: Joseph Bern
Publisher:
Total Pages:
Release: 1980
Genre: Coal mine waste
ISBN:

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Major residuals generated by the conversion process and its auxiliary operations include: (a) coal preparation wastes; (b) gasifier ash; (c) liquefaction solids-char; (d) tail gas or flue gas desulfurization sludge; (e) boiler flyash and bottom ash; (f) raw water treatment sludge, and; (g) biosludges from process wastewater treatment. Recovered sulfur may also require disposal management. Potential environmental and health impacts from each of the residues are described on the basis of characterization of the waste in the perspective of water quality degradation. Coal gasification and liquefaction systems are described in great detail with respect to their associated residuals. Management options are listed with the conclusion that land disposal of the major residual streams is the only viable choice. On-site versus off-site disposal is analyzed with the selection of on-site operations to reduce political, social and institutional pressures, and to optimize the costs of the system. Mechanisms for prevention of leachate generation are described, and various disposal site designs are outlined. It is concluded that co-disposal feasibility of some waste streams must be established in order to make the most preferred solid waste management system feasible. Capacity requirements for the disposal operation were calculated for a 50,000 bbl/day coal liquefaction plant or 250 million SCF/day gasification operation.

Regulating Coal Combustion Waste Disposal

Regulating Coal Combustion Waste Disposal
Author: Linda Luther
Publisher: DIANE Publishing
Total Pages: 25
Release: 2011
Genre: Technology & Engineering
ISBN: 1437940919

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This is a print on demand edition of a hard to find publication. Coal combustion waste (CCW) is inorganic material that remains after pulverized coal is burned for electricity production. Industry estimates that as much as 136 million tons were generated in 2008. On Dec. 22, 2008, national attention was turned to the waste when a breach in an impoundment pond at the TVA¿s Kingston, TN, power plant released 1.1 billion gallons of coal ash slurry. The cleanup cost may reach $1.2 billion. Contents of this report: (1) Intro.; (2) Overview of EPA¿s Proposal; (3) The Nature of CCW; (4) CCW Management Methods; (5) Risks Associated with CCW Mis-Management; (6) RCRA Provisions Relevant to EPA¿s Proposal (7) EPA¿s Proposed Regulatory Options; (8) Types of Coal Combustion Waste. Charts and tables.

Conversion of Large Scale Wastes into Value-added Products

Conversion of Large Scale Wastes into Value-added Products
Author: Justin S.J. Hargreaves
Publisher: CRC Press
Total Pages: 176
Release: 2013-12-12
Genre: Nature
ISBN: 146651261X

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Concern about the fate of waste products produced by a wide range of industrial processes has led to the realization that they may have potential uses and, therefore, value. In an effort to develop more sustainable processes and reduce waste storage, the use of waste as a resource has been gaining attention worldwide. Consequently, there have been a large number of studies aimed at utilizing such wastes. Conversion of Large Scale Wastes into Value-added Products discusses various selected classes of large-scale waste and their current applications and potential future applications. This book provides a snapshot of a continually evolving field, which includes both well-established processes and a drive toward developing strategies for new applications of wastes. The first chapter provides a general introduction to the area of large-scale waste utilization, including drivers for waste recovery, and secondary processes and products for waste reuse. Subsequent chapters discuss applications and potential applications in specific classes of large-scale waste: Various types of waste generated from different metal processing operations Waste generated by coal combustion, a major source of power generation that produces enormous quantities of waste Waste electrical and electronic equipment, important for recycling finite resources and reducing health and environmental risks Food waste, a significant and diverse waste stream with economic and environmental impacts The final chapter presents a general conclusion to the broad subject of waste utilization, summarizing the topics and addressing future trends in waste research.