A Study on Anaerobic Co-digestion of Sewage Sludge for Bio-gas Production
Renewed attention in anaerobic sludge digestion has led to further development in recovery of biogas. This includes studies on various disintegration mechanisms to enhance the digestion efficiency of sludge and food waste by reducing waste activated sludge. Biofuel extension from sludge via biological disintegration tends to be an efficient method because of increase in demand of renewable ecofriendly energy. As the role of extracellular polymeric substances is vital in flocculation, its removal upgrades the pretreatment task throughout. This article intends to provide a general overview of methods in evaluating the proficiency of pretreatment on anaerobic integration and promotion in bioenergy generation. Since higher percentage of biogas extraction remains to be tedious process from collection of waste to generation to utilization, it is thus required a multi-disciplinary strategy to further progress anaerobic co-digestion by resolving all the prevailing unfavorable circumstances.
Anaerobic sludge digestion, Waste activated sludge, Extracellular polymeric substances, Flocculation, Biogas recovery.