Potential of the Co-Digestion of the Sewage Sludge and Plant Biomass on the Example of Lviv WWTP

Abstract

Energy strategies of most developed countries include the sustainable development of all types of renewable energy, including energy generation from biomass. Co-digestion of sewage sludge and plant biomass has a number of synergetic effects, leading to increased digestion rate and output of biogas. The range of potentially effective co-digestion of sewage sludge with plant raw materials was considered on the example of the full-scale estimation study for Lviv WWTP, Ukraine. Substitution of the 25% of dry organic matter of sewage sludge by the same amount of plant raw matter can increase the total output of the methane at the biogas station by about 5.8%.