MULTICRITERIA SELECTION OF ORGANIC WASTE RECYCLING SYSTEMS BY ANALYTICAL NETWORK PROCESS

In Japan, the use of organic wastes such as kitchen waste and livestock manure has been strongly encouraged within the political framework through the Fundamental Law for Establishing a Sound Material-cycle Society (The Ministry of the Environment in Japan, 2000), the Fundamental Plan for Establishing a Sound Material-cycle Society (The Ministry of the Environment in Japan, 2003) and the Biomass Nippon General Strategy (Government of Japan, 2002). Various activities have been conducted to develop an organic waste recycling system appropriate to regional conditions. To develop a sound recycling system in a region, systems approach is effective (Furuichi et al., 2007).

The Analytic Hierarchy Process (AHP) has been used widely in multicriteria selection problems. However, AHP can deal with only a simple hierarchy of elements. On the other hand, the Analytical Network Process (ANP) can deal with more complex structures that have some interdependence or feedback between elements. This study attempted to apply ANP to the selection of organic waste recycling systems in a region where a large amount of kitchen waste and livestock manure are generated as solid waste. Using the weightings given by interviews with five specialists who are familiar with solid waste management in the region, ANP selected alternatives that included biogasification of kitchen wastes and livestock manure, and it clarified why those alternatives were selected. In addition, a compatibility quotient was proposed as an index to promote a group discussion for the selection of recycling systems. This index was found to be useful for helping to identify the attitude of each decision maker in a group discussion.



Copyright: © IWWG International Waste Working Group
Quelle: Specialized Session D (Oktober 2007)
Seiten: 12
Preis inkl. MwSt.: € 12,00
Autor: Kazuei Ishii
T. Furuichi
Noboru Tanikawa
Michael Angelo B Promentilla
Yasunori Takenaka

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