title: Two-scale evaluation of remediation technologies for a contaminated site by applying economic input-output life cycle assessment: risk-cost, risk-energy consumption and risk-CO2 emission.
abstract: A two-scale evaluation concept of remediation technologies for a contaminated site was expanded by introducing life cycle costing (LCC) and economic input-output life cycle assessment (EIO-LCA). The expanded evaluation index, the rescue number for soil (RN(SOIL)) with LCC and EIO-LCA, comprises two scales, such as risk-cost, risk-energy consumption or risk-CO(2) emission of a remediation. The effectiveness of RN(SOIL) with LCC and EIO-LCA was examined in a typical contamination and remediation scenario in which dieldrin contaminated an agricultural field. Remediation was simulated using four technologies: disposal, high temperature thermal desorption, biopile and landfarming. Energy consumption and CO(2) emission were determined from a life cycle inventory analysis using monetary-based intensity based on an input-output table. The values of RN(SOIL) based on risk-cost, risk-energy consumption and risk-CO(2) emission were calculated, and then rankings of the candidates were compiled according to RN(SOIL) values. A comparison between three rankings showed the different ranking orders. The existence of differences in ranking order indicates that the scales would not have reciprocal compatibility for two-scale evaluation and that each scale should be used independently. The RN(SOIL) with LCA will be helpful in selecting a technology, provided an appropriate scale is determined.
authors: EcoTopia Science Institute, Nagoya University, F3-4 670 Furo-Cho, Chikusa, Nagoya 4648603, Japan. inoue@esi.nagoya-u.ac.jp
authors: Yasushi
authors: Y
authors: Inoue
authors: Arata
authors: A
authors: Katayama
mesh_terms: D000465:Algorithms; D002245:Carbon Dioxide / Q000737:chemistry*; D003657:Decision Making; D004784:Environmental Monitoring / Q000379:methods; D052918:Environmental Restoration and Remediation / Q000379:methods*; D006358:Hot Temperature; D018803:Models, Economic; D015233:Models, Statistical; D012306:Risk; D018570:Risk Assessment / Q000379:methods*; D012987:Soil; D012989:Soil Pollutants / Q000032:analysis*; D013696:Temperature
chemical_list: D012987:Soil; D012989:Soil Pollutants; D002245:Carbon Dioxide