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Shawn Simmers, Cambria Cogen, "The Synergies Between CFB Power Generation and Waste Coal Pile Reclamation"

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This presentation will link power generation with the beneficial use of ash and waste coal pile removal/reclamation for Cambria Cogen and Colver Power Project.

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Shawn Simmers, Cambria Cogen, "The Synergies Between CFB Power Generation and Waste Coal Pile Reclamation"

  1. 1. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 1 Northern Star Generation Services Cambria Cogen Company Ebensburg, PA
  2. 2. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 2 • 88 MWnet power from 98 MWgross power – Can power about 100,000 homes • Waste coal (bituminous refuse) • Two Circulating Fluidized Bed (CFB) boilers – 410,000 lb/hr steam each – 1,550 psig, 955° F • One steam turbine/generator • Commercial operation in March 1991 • Integrated Operation between plant and fuel pile management Cambria Overview:
  3. 3. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 3 • Electricity: Open Market (PJM) • Steam: Sold to Cambria Care • Fuel: Own Two Piles – Ernest/Lucerne – Cambria Fuel Management – daily Ops • Limestone: New Enterprise • Water Supply: Wilmore Reservoir Long-Term Contracts:
  4. 4. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 4 Ernest • Original area mining was conducted from 1903 to 1965. • Assessment of the pile estimated volume to be 11,500,000 tons covering 94 acres. • Cambria Reclamation Company purchased the pile in 1995 – Reclamation began in October 1996 Lucerne • Original area mining was conducted from 1907 to 1967. • Original assessment of the pile estimated volume to be 8,700,000 tons covering 125 acres. • Cambria Reclamation Company purchased the pile in 1995 – Began to remove fuel in May 2012 – Approximately 700,000 tons per year Fuel Management:
  5. 5. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 5 Fuel Management:
  6. 6. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Fuel Management: 6
  7. 7. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Fuel Management • Reclamation Begins with Beneficial Use Ash • Beneficial Use Permit –Quarterly Coal Ash Quality Assessment –Fly Ash and Bottom Ash –Over 30 constituents analyzed • Heavy metals, nitrates, pH, CaCO3,etc 7
  8. 8. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Fuel Management • Fuel hauled to plant with ash haul back • Ash placed in 2ft compacted lifts • Water added for compaction and dust management • At final grade elevation of ash placement – Clay and top soil added – Fertilizer – Grasses, trees, shrubs, etc. 8
  9. 9. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Fuel Management • Reclamation – Goal is Wildlife Habitat – Types of grass and trees planted • Annual rye grass • Perennial Rye • Birds foot Trefoil • Clover and Timothy • Bent grass and Oats • American Chestnut Hybrid – Coordinated with the Office of Surface Mining 9
  10. 10. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 10
  11. 11. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 11 Environmental - Ernest • Evaluating the Impact – Is this working? • Water Quality Monitoring - Monthly • 24 surface monitoring points • 3 ground water wells. • Monitor to ensure mining activity is not adversely affecting the groundwater or McKee Run
  12. 12. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Environmental - Ernest Hydrologic Unit Acidity Lbs/day Iron Lbs/day Manganese Lbs/day Aluminum Lbs/day No. 1 Baseline -CV 671.89 77.08 2.17 65.71 Currently 90.87 1.33 0.35 12.20 No. 2 Baseline -CV 13,306.74 3357.98 26.59 894.63 Currently 92.89 1.77 0.30 12.40 No. 3 Baseline-CV 4.13 0.02 0.15 0.36 Currently 0.05 0.00 0.00 0.01 12
  13. 13. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Local Watershed Project • Clearfield Creek Watershed Association • Ferris Wheel Re-vegetation • Project Goals – Reclaim 30 acres of abandoned surface mine – Reduce AMD into Little Laurel Run and Clearfield Creek • Project Partners – PADEP, EPA, Blair County, Cambria Cogen 13
  14. 14. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Local Watershed Project • Project Description – Re-grade and reclaim – Top soil and/or clay where needed – Neutralize mine spoil with alkaline ash – Warm and Cool season grasses – 3,000 trees planted through PGC Cooperative – Organic material added • Mushroom Compost • Leaf Compost 14
  15. 15. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Local Watershed Project 15
  16. 16. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Local Watershed Project 16
  17. 17. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Local Watershed Project • Pre-Construction Water Quality – Average flow 188 gpm – Average pH = 3.4 – Average Acidity = 100 mg/L – Average Iron = 8 mg/L – Average Aluminum = 6 mg/L Recently started post construction monitoring 30 gpm flow reduction and 8 lbs/day aluminum 17
  18. 18. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Pile Nos. 1, 4 and 5
  19. 19. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Piles Nos. 1, 2 and 3
  20. 20. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site - Pile 2 Collection Ditch (CD-5)
  21. 21. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Pile 2 Diversion Ditch (DD-6)
  22. 22. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site - Pile Nos. 4 and 5 Reclaimed Amber Waves of Grain
  23. 23. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 23 Questions:

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