Abstract
The purpose of this study is to evaluate impact assessment of regional characteristics and some measures to reduce green house gas in waste disposal systems. For that purpose, we developed a linear optimization model that evaluates three waste disposal systems such as landfill, incineration and ash melting. Also, we assumed that LFG recovery power generation, and the incineration system and the ash melting system can be combined with the electric power generation. In addition we evaluated the effect of CDM that is considered as a measure to reduce GHG emissions in the local city in China. The results obtained in this study are as follows. (1) In Tokyo, where the maximum landfill area is restricted, the waste disposal system is incineration and will change to ash melting. In China, where the maximum landfill area is larger than that in Tokyo, the waste disposal system is landfill and will change to incineration. (2) The electric power charge is an important factor to use LFG to generate electricity efficiently in developing countries where the waste disposal system is landfill. (3) In developing countries, if GHG credit is approved, LFG leakage decreases and the amount of LFG power generation increases.
