Biogas is a bioenergy produced from organic or all types of biological degradable wastes and could make it possible to limit energy dependence. Sludge the best alternative substrate for biogas production at community-level plant. The literature shows that co-digestion can increase efficiency sludge anaerobic digestion. This research, thus, focused on (i) determining conditions optimal in primar...

The agro-industry of tomato generates three types residues: ripe rotten (unfit for consumption) (RT), green (unripe) (GT), and branches including leaves stems (TB). These materials are commonly wasted or used as feed livestock. Energy production through anaerobic digestion is an alternative way to manage simultaneously valorise these materials. Initially, the operating conditions mono were inve...

BACKGROUND Replacing the energy-intensive evaporation of stillage by anaerobic digestion is one way of decreasing the energy demand of the lignocellulosic biomass to the ethanol process. The biogas can be upgraded and sold as transportation fuel, injected directly into the gas grid or be incinerated on-site for combined heat and power generation. A techno-economic evaluation of the spruce-to-et...