Abstract
There is few amount of wet biomass in the farming area, so it tends to high processing costs and large amounts of GHG emission. Accordingly, it is necessary to deal with the wet biomass from farms efficiently with a centralized treatment system. In this study, considering the integrated wet biomass treatment, we clarified an unit emission coefficient of methane generation, stability of fermentation and a component of digestive with a case study in a cattle manure biogas plant which treats wet biomass. We analyzed the cost of the treatment of wet biomass and GHG emission by using experiment data from an administrative affairs association. As a result, by introducing the biogas plant, compared with the business as usual scenario, the cost of processing wet biomass is cut by 20% and GHG emission is reduced by 124%, . compared with the business as usual scenario. Consequently, the results show that the business is feasible.