APPLICATION OF MULTICRITERIA DECISION AID METHODS FOR THE SELECTION OF MUNICIPAL SOLID WASTE TREATMENT OPTIONS
The choice of a municipal solid waste (MSW) treatment option is a complex process in which a widespread set of criteria must be taken into account. Additionally to economic, geographical situation or social aspects, the decision process should consider the environmental ones. With the purpose of quantifying these environmental burdens, a wide variety of environmental and sustainability indicators have been developed in the last years. However, integrative frameworks have been signaled as the best option to achieve more comprehensive assessments. To this respect, Multi Criteria Analysis (MCA) provides a family of flexible analytical tools that can effectively support decision making with regard to complex sustainability issues. In this work, three MCA methods, namely AHP, ELECTRE I and ELECTRE III, were applied to prioritize among four different options of Municipal Solid Waste (MSW) treatment processes. Ecological Footprint, Material Flow Indicators and occupied landfill volume were used as environmental criteria. Both AHP and ELECTRE I conveyed the same ranking for the selected alternatives. The order obtained from the best to the worst option is as follows: thermal plasma gasification, biological treatment of organic fraction combined with incineration of refuse derived fuel; incineration with energy recovery; landfill with energy recovery. However, in the ranking obtained with ELECTRE III, incineration and landfill exchanged positions. This shows the importance of including uncertainty in this kind of studies. Besides, it can also be observed that the commonly recommended hierarchy for the selection of waste management options is not always suitable and that the particular conditions of the case study must be analyzed.
Multicriteria Analysis Ecological Footprint Material Flow Indicators Municipal Solid Waste
M. HERVA R. HERNANDO E. F. CARRASCO E. ROCA
Sustainable Process and Product Engineering Group. Dept. of Chemical Engineering,University of Santiago de Compostela, Campus Sur, 15782 Santiago de Compostela, Spain
国际会议
北京
英文
734-739
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）