Pilot Project for Value-Added Product Development from Solid ...

Table SA.13. Predicted Standardized Costs of Composting Value-Added Facility
when Producing Bagged Soil Amendment Product—1-cubic-foot bags
Component Total Cost Annualized Cost
Lot clearing for facility $ 5,300.00 $ 789.86
Concrete for facility $ 4,500.00 $ 670.63
Miscellaneous facility costs $ 17,441.20 $ 2,599.25
Electric for facility $ 5,620.00 $ 837.55
Grinder $ 66,000.00 $ 25,610.21
Mixing and bagging equipment $ 115,000.00 $ 44,683.25
Contractor & Engineering Services & Overhead $ 92,174.18 $ 13,736.67
Total Construction Cost $ 306,035.38 $ 62,725.76
Maintenance Cost $ 6,425.82
Diesel Cost (for grinder) $ 66.76
Electric Power Cost $ 395.22
Mixing Materials Cost $ 48,555.00
Bagging Costs $ 138,964.41
Property Taxes $ 1,086.43
Total Operating Cost $ 195,493.64
TOTAL ANNUALIZED COST OF MIXING/BAGGING FACILITY $ 258,219.40
Tables SA.14. through SA17.: Modeling Assumptions, Invoiced Construction Costs,
and Predicted Costs and Returns Summaries for Nature Works Organics
Vermicomposting Facility
Table SA.14. Modeling Assumptions for the Vermicomposting Facility
Solids separation efficiency 28.62 % of dry solids (mass balance basis)
(Zering and Wohlgenant)
Moisture content of separated solids 77.2 % (Zering and Wohlgenant)
Solids separation rate 1.9 wet tons / 1,000 lbs. SSLW (@ 77.2 %
moisture content) (Zering and Wohlgenant)
Harvesting frequency Twice per year (Binkley)
Processing rate 11,000 pounds (wet weight) of separated solids /
24 hours (Binkley)
Conversion ratio 1 pound of wet weight separated solids : 0.25
pounds of harvested castings
Electricity costs Based on 1 hour / day usage of a 50-HP tractor,
and $5 / day for irrigation and lighting
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