Sustainable biogas production from vegetable market waste in an ABR.
Phase separation in the chambers remained undisturbed in spite of effluent recirculation.
Enhanced biogas production due to complete utilization of residual VFAs during recirculation.
Carbon recovery factor for mass balance able to account for nearly 96.7% of input carbon.
One of the highest methane yield of 0.42–0.0.52 L methane/g VS added/d from vegetable waste in ABR.