FEASIBILITY OF WET-TYPE METHANE FERMENTATION USING LEACHATE TREATMENT FACILITIES AT FINAL DISPOSAL SITES AFTER LANDFILL COMPLETION

Abstract

 In light of the changes in social conditions, the decarbonization of the infrastructure sector and the multifaceted utilization of the infrastructure are currently required. In this study, we attempted to analyze the possibility of using the leachate treatment facility at the final disposal site after the completion of landfill as a water treatment facility for wet-type methane fermentation as a model case. As a result of the analysis, the project income and expenditure calculated based on the case study of the wet methane fermentation plan utilizing the existing leachate treatment facility showed the effect of about 30％ shortening compared to the normal payback period. In addition, the results of the analysis based on the information of controlled final disposal sites by excellent industrial waste treatment companies in Japan, which were certified as excellent, suggested the possibility of using leachate treatment facilities of a certain scale in the Chubu and Kinki regions in the early 2030s.