Using LCA to evaluate impacts and resources conservation potential of composting: A case study of the Asti District in Italy |
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| Institution: | 1. LAR Laboratory – Dipartimento di Ingegneria, Via G. Duranti 93, 06125 Perugia, Italy;2. CIMIS, Via G. Duranti 67, 06125 Perugia, Italy;1. Institute of Innovation and Circular Economy, Asia University, Taichung;2. De La Salle University, Manila, Philippines;3. National Tsinghua University, Hsinchu, Taiwan;4. Chung Yuan Christian University, Taoyuan, Taiwan;1. Sostenipra Research Group, Institute of Environmental Science and Technology (ICTA), Universitat Autònoma de Barcelona, 08193 Edifici C Bellaterra, Barcelona, Spain;2. Sostenipra Research Group, Institute of Research in Agrifood Sector (IRTA), Environmental Horticulture, 08348 Cabrils, Barcelona, Spain;3. Department of Chemical Engineering XRB, Universitat Autònoma de Barcelona, 08193 Edifici Q Bellaterra, Barcelona, Spain;1. Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino (TO), Italy;2. Department of Electric, Electronic and Informatic Engineering, Università degli Studi di Catania, Viale A. Doria 6, 95125, Catania, Italy;1. Key Laboratory of Agricultural Water Resources, Hebei Key Laboratory of Soil Ecology, Center for Agricultural Resources Research, Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences, 286 Huaizhong Road, Shijiazhuang 050021, Hebei, China;2. University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, China;3. Xiongan Institute of Innovation, The Chinese Academy of Sciences, 071700, Hebei, China;4. College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding 071002, Hebei, China |
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| Abstract: | Separate collection of municipal solid waste has overcome the 50% threshold in the Asti District in northern Italy, nearly one-third being composed of household and green organic waste. In order to address present and future solutions, it becomes therefore fundamental to assess the environmental performances of the current management of organic waste from separate collection. A from-gate-to-cradle life cycle assessment (LCA) model has been developed by expanding system boundaries, in order to carry out the assessment in the context of the whole waste management streamline. The environmental performances of an existing aerobic plant were made available, based on field measured data, by paying attention to the role and contribution of waste management subsystems. The need for actual and reliable data on materials and energy input, as well as gross and net gains from materials recovery, including benefits arising from use of compost in farming activities, was probably the major drawback that had to be faced. The study integrated the findings of different investigations from the literature with field measured data in order to obtain a more comprehensive framework representative of the area under study. The results may help public administrators to better understand the suitability of using LCA tools when dealing with solid waste management strategies. |
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