Atlantic Treatment Plant Combined Heat and Power (CHP...
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Atlantic Treatment Plant Combined Heat and Power (CHP) February 1, 2017
Transcript of Atlantic Treatment Plant Combined Heat and Power (CHP...
Atlantic Treatment Plant
Combined Heat and Power (CHP)
February 1, 2017
Rick Raike
Chief of Electrical and Energy Management
Presenter
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This presentation will provide a brief discussion of the CHP in the following areas:
• Provide an overview of the CHP system
• Discuss what the CHP does for HRSD
• Discuss what the CHP does for the environment
• Investigate some of the challenges with implementation
• Investigate some of the ongoing challenges
• Discuss a forward path with the CHP
Outline
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HRSD is a regional wastewater treatment
agency that serves 17 counties and cities.
What Is HRSD?
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We clean the wastewater that is created to
protect public health and the waters of
Hampton Roads.
What Do We Do?
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Why Do We Do It? For Everybody!
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Where Do We Do It?
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The Atlantic Treatment Plant in southeast
Virginia that can treat up to 54 million gallons
of wastewater every day.
Where Do We Do It?
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The Atlantic Treatment Plant in southeast
Virginia that can treat up to 54 million gallons
of wastewater every day.
Location of
Two Cummins,
1100 kilo-watt
methane engine
driven generators
Atlantic Treatment Plant CHP – Project Information
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The Atlantic Treatment Plant
produces enough methane to
power one 1100 kW, methane
engine driven generator.
A second generator is
alternatively run to allow
engine maintenance and to
maintain lower demand costs.
Cost of project $9.1 Million
-$1.2 million grant,
-$1.8 million low interest loan
-Green energy
Gas consumption 180 SCFM
kWhrs produced 7,200,000
Environmental Benefits:
Remove Methane, Sulfur, CO2
Atlantic Treatment Plant CHP
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Atlantic Treatment Plant CHP
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Atlantic Treatment Plant CHP – Cummins Engine Generators
Atlantic Treatment Plant CHP – Cummins Engine Generators
Atlantic CHP - Heat Recovery
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Atlantic CHP - Methane Engine Radiator
Atlantic Treatment Plant CHP – Control Skid
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Atlantic Treatment Plant CHP – Gas Storage
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Control Schematic
Atlantic Treatment Plant CHP - Component Parts
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Iron
Sponge
Bio-
Scrubber
Iron
Sponge
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Particulate
Filters Compressors Heat
Exchanger
Glycol Chiller
System (behind)
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Siloxane Absorption
Final
filter
Clean, Conditioned Methane Headed to Engine Generators
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Atlantic Treatment Plant CHP – Control Skid
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• Stabilize the system – Find the optimum operation
– Peak shave vs base load
• Meet regulations, NOx, CO
• MTBO, 15,000 hours – Oil changes, spark plugs, head replacement
• Maintaining Gas efficiency, 600 BTU at 60%
• Injecting Fertilizer
• Metering
• Engines shutting down
Challenges
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• Good to implement this project
• Overcoming the electrical and mechanical
challenges
• Currently meeting the regulatory challenges
• Right thing to do for the environment
• Starting to look at renewable energy credits
• Look at the other benefits
Summary
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• FOG
• Thermal Hydrolysis Process (THP) will use a process to pulverize the solids and give HRSD an energy neutral opportunity to provide: – Additional digester capacity and additional gas
– Class A solids
Opportunities –
Other plants can efficiently dispose of their solids
……allowing us to:
– Run two or three methane gas engine generators
Future Opportunities
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The CHP’s are an opportunity
that allows HRSD to convert
waste into fertilizer and power.
