Input the fields marked with an *. The calculations will appear in the boxes next to the green texts.
Step A: Determine the weight of animal carcasses to be composted.
* Average daily loss (ADL) (lbs)
* Design mortality weight (W1) (lbs)
Annual loss = ADL * 365 = (lbs/yr)
Step B: Determine the composting cycle times for the "design weight" to be composted in each windrow or bin.
Primary cycle time (days) = 5.00 * (W1)0.5 days (If less than 10 days, use 10.)
Secondary cycle time (days) = 1/3 primary cycle time, minimum time >= 10 days days (If less than 10 days, use 10.)
* Storage time (days) = Year's maximum period of time between land application events. days (from nutrient management plan)
Step C: Determine the needed composter volumes.
Primary composter volume (ft3) = 0.2 * ADL * primary cycle time (ft3)
Secondary composter volume (ft3) = 0.2 * ADL * secondary cycle time (ft3)
Storage volume (ft3) = 0.2 * ADL * storage time(days) (ft3)
Step D: Determine the dimensions of the compost facility, bin dimensions, and windrow size or number of bins.
Step E: Determine the annual sawdust required for the composting.
Annual sawdust needs (yd3/yr) = annual loss (lbs/yr) * 0.0069 (yd3/yr)