Waste disposal systems conventionally exhibit many problems, such as difficulties in finding final disposal sites for incinerator residues and the issue of how to recycle waste materials. Some new technologies have been developed to solve such problems, including ash melting and gasification melting. Furthermore, to improve the power generation efficiency of waste treatment facilities so that their energy is used more efficiently, combined stoker/gas turbine power generation (super waste power generation) technology has been developed. Through examination of two cases in this study, environmental impacts and costs were determined using lifecycle assessment (LCA) and lifecycle cost (LCC) methods in a model city. In case 1, a stoker furnace was compared to a combined stoker/gas turbine system. In case 2, a stoker furnace plus ash melting system was compared to a gasification melting system. The results demonstrate that the stoker furnace has a lower environmental impact than the combined stoker/gas turbine system in case 1, and that the stoker plus ash melting system costs less than the gasification melting system in case 2, but both systems had strong impacts on the environment.
[1]
Noboru Tanigawa,et al.
Waste Incineration: The Threshould of Change. Development of New Waste-to-Energy Technology.
,
1998
.
[2]
敏彦 松藤,et al.
原料ごみ質およびプロセスの異なるRDF生産施設のエネルギー・コスト・環境影響評価
,
1996
.
[3]
Hideo Azuma,et al.
A Poll to JSWME's Members on their Intentions to Participate International Cooperation. by the International Relations Committee of JSWME.
,
1996
.
[4]
Morihiro Osada,et al.
Landfill Site Reclamation Technology and its Economic Evaluation
,
2005
.
[5]
日本建築学会.
Architectural Institute of Japan
,
1990
.
[6]
Kazuo Nakamura.
Waste Incineration: The Threshould of Change. Study of Refuse Disposal System Composed of New Technologies.
,
1998
.