Power Plant Construction and QA/QC
Section 9.4 – Solid Waste Management
Engineering Technology Engineering Technology DivisionDivision
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Overview
• Regulations Changed in Last 15 Years
• EPA – New Regulations 1995 for Solid Waste
• Major Areas of Concern
• Coal Ash
• Flue Gas Desulfurization
• Municipal Waste Ash
• Radioactive Materials
• Sludge and Slurry
Section 9.4 – Solid Waste Management
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Disposal
Section 9.4 – Solid Waste Management
Wet DisposalDry Disposal
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Ash Composition
Section 9.4 – Solid Waste Management
Potentially toxic trace elements in coal ash include:
•Arsenic•Barium•Beryllium•Cadmium•Chromium•Copper•Lead•Mercury
• Molybdenum• Nickel• Radium• Selenium• Thorium• Uranium• Vanadium• Zinc
Concentrations Increase Concentrations Increase After Coal is BurnedAfter Coal is Burned
Coal Types
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Ash Uses
Section 9.4 – Solid Waste Management
• Concrete Blocks
• Mine Reclamation
• Paints and Plastics
• Kitchen Countertops
• Bowling Balls
• Vinyl Floor Covering
• Mineral Filler - Asphalt Pavement
Based on the TVA Kinston Ash Spill, new EPA Regulations are expected.
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Questions?
Section 9.4 – Solid Waste Management