Workshops | BioCycle West Coast Conference 2012


Agenda: Keynote speakers | Monday: Preconference workshops | Tuesday: Sessions | Wednesday: Sessions | Thursday: Site tours | Special Events
Presentation Descriptions: Tuesday Track 1 | Track 2 | Track 3 | Track 4   Wednesday Track 1 | Track 2 | Track 3 | Track 4
Download conference brochure pdf    


Monday, April 16, 2012

Updated 3/12

Workshop 1
Compost Use In Green Infrastructure

Design, Installation, Maintenance, Performance and Economics


Workshop 2
Business Of Anaerobic Digestion

Financing, Siting, Biogas Markets, Project Evaluation

Monday, April 16, 2012

– Henry Stevens, City of Portland Bureau of Environmental Services
– Shanti Colwell and David McDonald, Seattle Public Utilities

12:00 PM - 6:00 PM

12:00 PM - 12:15 PM   Workshop Overview, Introductions
12:15 PM - 1:15 PM   Specifications for Compost-Amended Soils and Bioretention
• Why use compost?
• Critical elements of compost for these applications — particle size, quality and need for consistent product
• Soil Mixes
  Compost-amended (native soil considerations, compost application rates)
  Bioretention: Mineral aggregate, compost/aggregate ratios, variations in specifications
  Where to use compost-amended, where to use bioretention (pros/cons)
• Native soil considerations
  Geotechnical feasibility
• Pollutant removal
• Nutrients in compost
1:15 PM - 2:15 PM   Installation and Maintenance
• Compost-amended soils
  Critical elements for installation
  Lessons learned
• Bioretention soils
  Critical elements for installation
  Lessons learned
• Vegetation establishment and system stabilization
• Maintenance requirements (aesthetic and functional), frequency, staffing
• Evolving plant palette to reduce O&M demand
• Maintenance costs and budget allocation
2:15 PM - 3:00 PM   Monitoring, Performance and Cost-Benefit Analysis
• Predictability and reproducibility to guarantee performance of installations
• Modeling storm water flow on compost-amended soils
• Lifecycle costs, monetizing benefits of "green" vs. "grey" (conventional)
• Becoming standard practice in storm water management
3:00 PM - 3:15 PM   Q&A, Overview of Installations on Tour
3:15 PM - 3:30 PM   Break and Board Bus
3:45 PM - 5:45 PM   Tour of Installations
6:00 PM   Return to Red Lion

The American Biogas Council presents this workshop on the business of anaerobic digestion.

– Dean Foor, Project Engineer, Essential Consulting Oregon
– Rolfe Philip, VP Business Development, Yield Energy
– Mike Casper, Director of Project Development, Homeland Biogas Energy
– Adam Halsband, Business Development Manager, Eisenmann Corporation
Additional Instructors Invited


9:30 AM - 4:30 PM

    Organic Waste Management: Food and Agricultural Feedstocks
• Sourcing and receiving feedstocks
• Treating and preprocessing
• Options for contaminant removal
• Benefits and challenges
    Determining a Location
• Brownfield/old landfill site
• Composting site
• Greenfield
• Co-locate at a dairy
• Food processing plant
• Proximity to off-takers/power grid
• Wastewater treatment facility
    Types of Digester Technology
• Wet system configurations
• Dry fermentation
• Plug-flow and complete mix
• Evaluating and selecting vendors
• Ancillary facilities
  Running a Financial Model, Project Financing
• ROI requirements
• Determining tip fee, digestate value
• Acquiring Financing (debt vs equity)
• AD friendly lenders
  How Do You Want To Execute The Project?
• EPC (Engineering, Procurement, Construction) firm
• Engineering company and bid out packages
• Does your lender require an EPC wrap contract? Or are you self-financed?
• Who will ultimately be operating the facility? In-house staff? Third party? Need for a system safety and operability review before design is complete
• How to minimize operating costs
  Regulations And Permitting
• Air, water and solid waste permits
• Land use and zoning considerations
• State codigestion rules
  Negotiating Off-Take Agreements
A. Managing Digestate
  • Animal bedding
  • Compost
  • Liquid fraction - land application
  • Drying
  • Innovation - Biochar, membrane separation, ammonia stripping and fertilizer recovery
B. Determining Best Use Of Biogas
  • Turbines, engines and CHP
  • Renewable natural gas grid injection
  • Vehicle fuel opportunities
  • Utilization of fuel cells
C. Negotiating a Power Purchase Agreement
  • Price of power
  • Escalation clauses