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. CCCCCC CambriaCambria CoGenCoGen CompanyCompany 1 Northern Star Generation Services Cambria Cogen Company Ebensburg, PA
- 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. 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. 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:
- 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. 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. 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
- 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. 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. 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. 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
- 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. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Pile Nos. 1, 4 and 5
- 19. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Piles Nos. 1, 2 and 3
- 20. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site - Pile 2 Collection Ditch (CD-5)
- 21. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site – Pile 2 Diversion Ditch (DD-6)
- 22. CCCCCC CambriaCambria CoGenCoGen CompanyCompany Lilly Site - Pile Nos. 4 and 5 Reclaimed Amber Waves of Grain