shawn simmers, cambria cogen, "the synergies between cfb power generation and waste coal pile...
DESCRIPTION
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.TRANSCRIPT
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
1
Northern Star Generation Services
Cambria Cogen Company
Ebensburg, PA
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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:
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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:
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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:
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
5
Fuel Management:
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Fuel Management:
6
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
10
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Environmental - Ernest
Hydrologic Unit
AcidityLbs/day
IronLbs/day
ManganeseLbs/day
AluminumLbs/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 0.0112
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Local Watershed Project
15
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Local Watershed Project
16
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
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 aluminum17
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Lilly Site – Pile Nos. 1, 4 and 5
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Lilly Site – Piles Nos. 1, 2 and 3
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Lilly Site - Pile 2 Collection Ditch (CD-5)
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Lilly Site – Pile 2 Diversion Ditch (DD-6)
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
Lilly Site - Pile Nos. 4 and 5 ReclaimedAmber Waves of Grain
CCCCCC
CambriaCambriaCoGenCoGenCompanyCompany
23
Questions: