Village of Turtle Lake Collaborative Digester Feasibility ... Forms/WWOA TL Digeste… · Village...
Transcript of Village of Turtle Lake Collaborative Digester Feasibility ... Forms/WWOA TL Digeste… · Village...
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Village of Turtle LakeCollaborative Digester
Feasibility StudyPresented at the
WWOA Northwest District
April 17, 2009
Barron, WI
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IntroductionsCory Davis, Director of Public Works
Village of Turtle Lake
Mark Broses, PE, Environmental EngineerPaul Gont, PE, Wastewater Engineer
Sheryl Claflin, PE, Civil EngineerShort Elliott Hendrickson, Inc.
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A copy of this presentation will be available at
www.villageofturtlelake.comand
www.sehinc.com
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Outline
• General Drivers behind Anaerobic Digester Biogas to Energy projects
• History of the Turtle Lake Project
• Overview of the Feasibility Study
• General Considerations for Biogas to Energy projects
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General Drivers for Collaborative Digester Biogas Project
• Collaborative digesters focus on combining the organic waste streams from multiple operations (cheese factories, dairy farms, and egg layers, for example) into a central digester system (s)
• Waste Treatment
• Biogas Renewable Energy Opportunity
• Financing Options for Public / Private Systems
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Federal Legislative Actions related to Biogas to Energy
• Energy Independence & Security Act ( 2007 )• Food and Energy Security Act of 2008 ( Farm Bill ) • American Recovery and Reinvestment Act Economic
Stimulus Act (2009) • Production and Incentive Tax Credits, ( electricity derived
from biomass extended to 2013 )
In the not too distant future …..• New Energy Bill? Renewable Feed-In-Tariffs?• Biogas tax credits $4/MMBTU ?• Bitter debate over Carbon Cap & Trade - When, If, How?• Increased emphasis on cogeneration• Renewable Biomass Facilitation Act (Biomass from Federal
Lands)
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Why is a Digester Needed?
• The Turtle Lake WWTP is having difficulty meeting limits due to the industrial waste loads and slug discharges currently going to the treatment plant.
• The local industries are having difficulty meeting their DNR requirements to handle their high-strength waste (land application)
• Expansion
• A collaborative digester would address both the industrial and the Village current DNR regulation issues.
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History of the Project
• Initial studies conducted by Lake Country Dairy began in 2006
• Evaluated both single plant stream as well as additional waste streams from Kerry Foods and Northern Liquid Waste Management
• Ecovation Anaerobic Digester Mobilized Film Technology (MFT)
• Combined Heat and Power
• Project stalled due to short term finance issues
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Current Study
The Village offered to take the lead on Public / Private approach
A Focus on Energy grant was securedto complete a Preliminary Feasibility study
to determine if a digester would be a feasible solution for the situation.
Core participants agreed to pay for a portion of the matching funds to complete
the study.
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Is providing $10,000 grant toward Phase 1
Focus on Energy works with eligible Wisconsin residents and businesses to install cost effective energy efficiency and renewable energy projects.
Focus information, resources and financial incentives help to implement projects that otherwise would not be completed, or to complete projects
sooner than scheduled. Its efforts help Wisconsin residents and businesses manage rising energy costs, promote in-state economic
development, protect our environment and control the state's growing demand for electricity and natural gas.
http://www.focusonenergy.com/
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Core (Paying) Participants for Phase 1
• Lake Country Dairy
• Kerry Foods
• Northern Liquid Waste Management
• Village of Turtle Lake
• Focus on Energy
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Other Study Participants• Barron and Polk Counties
• UW Extension
• Turtle Lake School
• Other interested food industries and
• Large dairy farms – concentrated animal feed operations (CAFOS)
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Lake Country DairyStudy Participant
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Lake Country Dairy
• Lake Country Dairy started as a milk transfer station with 12 employees
• LC currently makes 70,000 lbs of cheese per day
• LC utilizes 800,000 lbs of milk per day• LC during the winter peak this year had 200
employees• LC land spread 11 million gallons of waste
per year• LC is hoping to double it’s size depending
on the economy.
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Kerry Foods
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Kerry Foods• Separates soy flour and removed protein for human
consumption• Kerry sells the protein to international companies
such as Nestle and Kellogg• By-product of their process is soy fiber and soy
whey• Kerry land spreads 30 million gallons of waste per
year• In 2008 Kerry produced 7 million lbs of product• Kerry is estimating 10 million lbs of production in
2009• Kerry would like to double it’s capacity depending
on the market
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Northern Liquid Waste Management
Manages (including collection and land application) of liquid wastes from several local food industries including cheese factories and dairies
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Village of Turtle Lake
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Village of Turtle Lake
• Continue to Serve existing Industrial and Residential Clients
• Support Expansion
• Attract New Businesses to Eco Industrial Park
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Turtle Lake Wastewater Treatment Plant• WWTP Built in 2003
• Design flow of 546,000 gal/day
• Current flow to the WWTP is 514,000 gal/day
• Design BOD is 2,464 lbs/day
• As of March 2009, BOD loading was 2,958 lbs/day
• Suspended solid design is 2,407 lbs/day
• Current suspended solids is at 1,762 lbs/day
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Overview of the Feasibility Study
• looking at waste from farms, industrial food processing businesses and municipalities within an approximate 100 mile radius, and then processing that material at a single or multiple locations to produce biogas and solids that can be utilized for a variety of purposes.
• The goal of this facility is produce enough biogas that if used for electrical generation, could produce up to 4 MW of energy.
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A brief word about
Confidentiality Agreements
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Collaborative Anaerobic Digester Concept for Biogas Production
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Scope of the Study
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Phase 1
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Phase 2
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Biogas Usage options
• Heat production
• Combined Heat & Power
• Gas cleanup for CNG fueled vehicles
• Gas cleanup to NG pipeline quality
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Combined Heat and Power
http://www.ge-energy.com/prod_serv/products/recip_engines/en/downloads/as_biogas_feb08.pdf
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Cleaning up Landfill Gas to CNG for Vehicle Fueling in Ohio
http://www.firmgreen.com/tech_main.htm
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Bio Gas Pipelines?Wednesday, February 25, 2009
Landfill gas may fuel dryers at Jones IslandFrom an article by Don Behm in the Milwaukee Journal Sentinel:
Building a 17-mile pipeline to carry landfill gas from Muskego to the Jones Island sewage treatment plant on Lake Michigan
will save the Milwaukee Metropolitan Sewerage District, its customers and property-tax payers at least $148 million in the
next two decades, Milwaukee Mayor Tom Barrett and sewerage district officials said Monday.
The landfill gas at Muskego is between 50% and 55% methane and will replace natural gas as the fuel for 12 sewage sludge
dryers inside the Milorganite fertilizer production facility at Jones Island, under the proposal. Cost of converting the dryers to burn landfill gas is included in the $22 million
construction estimate, Shafer said.
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Considerations
• Logistical
• Administrative
• In-plant
• Hot Buttons
• Words of Caution
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Logistical Issues
• Feedstock Delivery (& rejection)
• Storage (inputs and outputs)
• Odor, Noise, & Visual Aesthetics
• Truck Traffic Planning
• Health & Safety
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Administrative Issues
• Long term fuel agreements
• Bio Fuel price variation may not be related to fossil fuel pricing
• Air permits (for variable fuels)
• Warranties (for fuel types)
• Public/private partnerships
• Power Purchase Agreements
• Carbon Credits
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In the Plant
• Fuel quality specifications
• Toxicity and shocking to bacteria
• Handling (sizing, fines, rocks, corrosiveness, stability, etc)
• Gas cleanup (H2S, siloxanes,…)
• Emissions
• Reliability (for example - anaerobic digestion to biogas can be a tricky business)
• Redundancy and Replacement
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Hot Buttons
• Traffic, Traffic, Traffic
• Odor, Odor, Odor
• Noise
• Local participation
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Words of Caution• Call a Ford dealer and ask him what kind of truck to
buy.
• If it looks to good to be true – it probably is.
• Stranded Assets
• Due Diligence on Emerging Companies (Developers, Technology, $)
• Long Term Stake?
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Renewable Energy ServicesFeasibility and Resource Assessment Studies
Site Selection and Permitting ServicesAssistance with Funding Agencies
Public Involvement“Balance of Plant” Design
Bidding & Construction ManagementDesign/Build Capability
and…..Established teaming relationships with ME firms, legal counsel, and financial consultants to address all needs for Total Project Delivery
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Questions – Now or Later
Cory Davis, DPW Turtle Lake [email protected]
Paul Gont, PE [email protected]
Sheryl Claflin, PE [email protected]
Roccy Raymond,PE [email protected]
Mark Broses, PE [email protected]
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Thank You!
A copy of this presentation will be available at
www.villageofturtlelake.com
and
www.sehinc.com
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