The highest biogas production was achieved by treating chopped orange peel waste and hexane ratio of 12 : 1 at 20∘C for 10 min corresponding to more than threefold increase of biogas production from 0.061 to 0.217m3 methane/kgVS
The highest biogas production was achieved by treating chopped orange peel waste and hexane ratio of 12 : 1at 20∘C for 10 min corresponding to more than threefold increase of biogas production from 0.061 to 0.217m3 methane/kgVS