1. Organics Processing Technologies and Infrastructure Case Study
Tracie Onstad Bills
Northern California Director Sustainable Materials Management
California Resource Recovery Association
August 9, 2016

2. Study Location
Reno
Truckee
Lake Tahoe
Auburn
Sacramento

3. Feasibility Study Waste Characterization Modeling Site Location
Constraints and Criteria
Permitting Requirements and Regulations
Organics Processing Technologies
Feedstock and Product Markets
Cost Model
Recommendations
Organics Management Plan

4. Material Composition Needs Steps: Business List SIC Codes
2008 CalRecycle Waste Characterization Business Sector Data
Steps:
Applied material densities from CalRecycle characterization
Estimated quantities for each material category
Scaled totals with actual annual tonnage
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

5. Business Sector Material Category Data
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

6. Data Conversion
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

7. Estimated Tonnage
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

8. Final Numbers
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

10. Siting Matrix Identified list of potential sites
Evaluated the sites for suitability for organics processing
Filtered out unacceptable sites
Developed a short list of sites to conduct visits
Developed a pro/con matrix of short-listed sites
Prepared findings and recommendations
of the preferred sites

12. Technology Matrix Composting
Windrow Composting (i.e., turned windrows)
Aerated Static Pile (ASP) Composting
Aerobic In-Vessel Composting
Digestion
Dry Anaerobic Digestion
Wet Anaerobic Digestion
Mechanical/Thermal Treatment
Autoclave
Masher/Dryer
Technology Matrix

13. Projections
Material Flow Control and Contractual Obligations
Waste Flow Projections
Operations and Capacity
Organics Projections
Recycling Laws, Regulations and Program Changes

14. Tonnage Projections

15. Potential Feedstock Generators

16. Potential Markets

17. Cost Model Financial Data and Background Info
Organics Processing Technologies
Hauling / Processing Scenarios
A cost model was developed to provide a comprehensive analysis of the financial requirements for each scenario analyzed.
Visuals at Transfer Station – routes – explain the three sections and how it would equate to businesses
Explain how the information was tallied

18. Base Assumptions Total food waste available: 6,000 (tpy)
Capture rate: 50%
Total food waste collected: 3,000 tpy
Days collected per year: 260 days/year
300 Pounds per customer per pick-up:
Capital cost financing: 5% interest rate, 20 years, 5% cost of capital to finance
Contractor overhead: 10%
Contingency: 15%
Base Assumptions

19. Recycling Technical Assistance
Collection
Yellow Bag
Bin Collection
Processing
Compost (Windrow/Aerated Static Pile/In-Vessel)
Direct Haul to Composter
Anaerobic Digestion (Dry/Wet)
Autoclave
SAFE
Recycling Technical Assistance

20. Estimated Capital Costs
Windrow Composting ($1,277,000)
Aerated Static Pile ($1,336,000)
In-Vessel Composting ($2,250,000)
Autoclave ($5,300,000)
SAFE ($5,580,000)
Dry/Wet Anaerobic Digestion ($6,137,000 -$7,001,000)
Estimated Capital Costs

21. Estimated Operations & Maintenance Costs
In-Vessel Composting ($308,280)
Windrow Composting ($487,000)
Aerated Static Pile ($508,000)
Autoclave $710,000)
SAFE ($772,000)
Dry/Wet Anaerobic Digestion ($969,000 - $923,000)
Estimated Operations & Maintenance Costs

22. Estimated Collection & Hauling Costs
In-Vessel Composting - $951,280 ($206)
Donovan Haul - $1,046,000 ($227)
Windrow Composting -$1,151,000 ($249)
Aerated Static Pile -$1,130,000 ($245)
Full Circle - $1,195,000 ($259)
Autoclave - $1,353,000 ($293)
SAFE - $1,359,000 ($294)
Dry/Wet Anaerobic Digestion – $1,572,000 - $1,518,000 ($341-$329)
Estimated Collection & Hauling Costs

23. Technology Scores

24. Technology / Site Score

25. Conclusion An estimated 6,000 tons of organic is generated
A growth rate of 2% per year over 20 years was established for all incoming tonnage
Based on the scoring and weighting criteria established for the project, the autoclave, and windrow and aerated static pile composting technologies ranked the highest.
Capital costs range: $1.3 - $6.1 million
Long Term: Eastern Regional MRF-Upper Area site ranked highest
Short-term: R.T. Donovan site for transporting organic materials

26. Thank You! Tracie Onstad Bills SCS Engineers (925) 426-0080 tbills@scsengineers.com