Produced bioenergy in this study has average GHG emission (kg
CO2 eq./GJ) ranging from 9 to 53 in case B scenarios, and in case A
scenarios (0–4) GHG emission are within (0.9) – 63. Except scenario
1, all other scenarios have improved GHG emission as compared
to scenario 0 (case A). In case B scenarios, all scenarios (1–
4) have reduced GHG emission as compared to scenario 0.
Scenario 0 is one of the most prevalent ways of managing dairy
waste in the US. Hence, algal bioenergy production from dairy
nutrients is an attractive option for reducing GHG emission from
dairy manure management.