ごみ処理施設と下水処理施設の連携システムの環境性・経済性評価

抄録

We investigated a combined system of the garbage disposal facility and sewage treatment facility in Japan. We evaluated the environmental and economic efficiency for the facilities with waste disposal scale of 300t / D and 50t / D in six constructed scenarios. To get information about the details of construction and maintenance costs, we conducted a questionnaire survey with five plant manufacturers. From our analysis results, we found that in the facility scenario with a waste disposal scale of 300t / D, the installation of a combined waste treatment facility and a sewage treatment facility costs 2.28 billion yen annually and emits 15991t-CO2 / year. At the 50t / D facility scenario, the environment and the economic factors were traded-off. From the results of our sensitivity analysis, it was found that the annual CO2 emissions can be reduced by 12448t-CO2 / Y and the annual cost can be reduced by 150 million yen when the ratio setting of garbage is set to 15% to 45%.