Katsuhito Nakazawa

Inventory Analysis of Composting System for Garbage Discharged from Retail Stores.

The composting of garbage has been expected to reduce the amount of waste disposal in landfills and to improve the efficiency of power generation combined with refuse incinerator. In this study, the composting of garbage discharged from three stores in CO·EOP Tokyo was researched, and the inventories of the composting system and the incinerating system were investigated from the viewpoint of environmental loads such as energy consumption and solid waste.In the results obtained from the composting research, the electricity consumed by the composting of garbage was large in autumn and winter season, and it was ascertained that the electricity consumption was reduced by adjusting the amount of garbage to the capacity of the composting apparatus. The results of the inventory analysis showed that energy consumption in the composting system was larger than that in the incinerating system. The solid waste (incineration ash) in the incinerating system was larger than that in the composting system, because the compost was finally used in the farm.